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35 results about "Conditional simulation" patented technology
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Method and apparatus for mapping uncertainty and generating a map or a cube based on conditional simulation of random variables
InactiveUS6912491B1Computation using non-denominational number representationSeismic signal processingNormal densityAlgorithm
A new method is presented for generating a probability map, a cutoff map, and a confidence limit map in one single operation. In addition, the new method can also generate a cube representing a cubic volume of earth formation by using the same method for generating the aforementioned maps. This is accomplished by:[0001](a) gridding a cross section, (b) Kriging the gridded cross section thereby producing a plurality of expected values and a corresponding plurality of standard deviations associated, respectively, with the plurality of intersections on the gridded cross section, (c) generating a plurality of probability density functions which correspond, respectively, to the plurality of expected values / standard deviations of the plurality of intersections, (d) integrating each of the probability density functions thereby generating a plurality of cumulative distribution functions which correspond, respectively, to the plurality of probability density functions, (e) choosing a value from each of the cumulative distribution functions associated with each of the intersections of the gridded cross section, and (f) assigning such value to its associated intersection of the gridded cross section and assigning a unique color to each such value, thereby generating a map illustrating the characteristics of the cross section through the earth formation. Since a cube includes a plurality of gridded cross sections, by generating a map for each cross section, the new method will generate the cube.
Owner:SCHLUMBERGER TECH CORP
System and method for performing oilfield simulation operations
ActiveUS7877246B2Electric/magnetic detection for well-loggingFluid removalPartial differential equationMulti phase
The invention relates to a method of performing an oilfield operation of an oilfield having at least one wellsite, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein. The method includes determining a time-step for simulating the reservoir, the reservoir being represented as a plurality of gridded cells and being modeled as a multi-phase system using a plurality of partial differential equations, calculating a plurality of Courant-Friedrichs-Lewy (CFL) conditions of the reservoir model corresponding to the time-step, the plurality of CFL conditions comprising a temperature CFL condition, a composition CFL condition, and a saturation CFL condition, simulating a first cell of the plurality of gridded cells with an Implicit Pressure, Explicit Saturations (IMPES) system, and simulating a second cell of the plurality of gridded cells with a Fully Implicit Method (FIM) system.
Owner:SCHLUMBERGER TECH CORP +2
3D model simulation method specific to contaminated site remediation
InactiveCN106599396AImprove repair efficiencyImplement distribution in real timeEarth material testingDesign optimisation/simulationSensor arrayAnalysis data
The invention discloses a 3D model simulation method specific to contaminated site remediation. The method comprises the following steps: 1) determining specific pollutants according to site investigation, and performing distribution of testing sites, sampling and analysis in a suspected contaminated area; 2) combining concentration analysis data of the specific pollutants serving as sample data with a geographic position on a GEO (Geographically referenced) sensor array through a computer data acquisition module to form an integrated data file, and uploading the integrated data file to a database; 3) performing reliability and error analysis on integrated data through analytical calculation in order to perfect data, and interpolating discrete sample point data of the integrated data through a conditional simulation method to form continuous surface data; and 4) forming an interactive 3D view to be output by the continuous surface data in conjunction with a 3D visualization technology in order to form a real-time three-dimensional contamination status map. Through adoption of the 3D model simulation method, an advanced sensing technology, a computer technology, a wireless transmission technology and the like are applied to the soil / underground water remediation industry, and meanwhile the remediation efficiency of an in-situ remediation process is increased.
Owner:BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
Testing device and method for simulating landslide-barrier dam-dam break flood disaster chain evolution process
Owner:DALIAN UNIV OF TECH
Rapid seismic random inversion method based on horizontal constraint
ActiveCN108318921AIncrease vertical resolutionGood horizontal continuitySeismic signal processingImage resolutionSpatial structure
The invention discloses a rapid seismic random inversion method based on the horizontal constraint. The method comprises the steps of performing spatial structure analysis on the well data to obtain the variation function, solving the target interval horizontal correlation function, non-conditional simulation implementation, conditional processing and disturbance optimization for obtaining the optimal solution. The problems that the horizontal continuity of conventional random inversion is poor, the geological characteristics of the underground reservoirs cannot be effectively reflected, the operation speed is slow and the calculation efficiency is low can be solved. The horizontal correlation function is added in the covariance function of conventional calculation to act as the constraint, and random inversion is realized by using fast Fourier sliding mean spectral simulation with combination of the progressive deformation update method so that the inversion result is enabled to achieve the effect of high longitudinal resolution and great horizontal continuity. Compared with the conventional random inversion, the horizontal continuity of the inversion result can be enhanced, the calculation efficiency can be enhanced and the method plays an important role in subsequent reservoir identification and oil reservoir description.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Simulation analysis method for mechanical vibration of dry-type transformer under marine transportation working condition
PendingCN111339705AQuality assuranceStable structureGeometric CADDesign optimisation/simulationSea wavesTransformer
The invention discloses a simulation analysis method for mechanical vibration of dry-type transformer under marine transportation working condition, which utilizes finite element simulation software to simulate the structural size, the assembly relationship and the fixing form of a dry-type transformer to the greatest extent, ensures the grid quality and improves the solving efficiency. Corresponding ocean transportation machinery environment conditions are selected to simulate sea wave impact borne by the carrying ship; the dynamic swinging simulation motion of the transformer is completed; astress response value is obtained through simulation; according to the method, the structure where the mechanical strength of the transformer is most likely to fail in the ocean transportation process is judged, the problem that a load curve of sea wave impact cannot be simulated through transient impact simulation is solved, the reliability of the dry-type transformer under the ocean transportation working condition can be evaluated in advance in the product research and development stage, and the most reliable product structure is optimized.
Owner:HAINAN JINPAN INTELLIGENCE TECH CO LTD
Surface subsidence budget method based on FLAC3D numerical simulation mineral exploitation
PendingCN111324939AConvenient simulation operationEconomically reasonableDesign optimisation/simulationPhysical modelNumerical models
The invention discloses a surface subsidence meter budget method based on FLAC3D numerical simulation. The drill hole of the actually exposed mineral product is analyzed; geological conditions of mineral products during actual mining are combined; the strike and the inclination length of the mining face and the thickness of roof and floor strata of a selected drilling ore bed are used as X, Y andZ lengths of the model; establishing numerical model, a Moore-Coulomb physical model criterion is selected, a model obtained after mineral exploitation is defined as an empty model, the bottom of themodel is defined as a full-constraint boundary, left and right boundaries and front and rear boundaries as constraint boundary conditions, downward stress is applied to the top of the model accordingto the gravity of an overlying rock stratum in the simulation exploitation process, and a ground surface subsidence numerical value is output through node numbers. According to the method, physical and mechanical testing is combined, FLAC3D numerical simulation software is utilized, an analysis and debugging model is established, mineral exploitation simulation solving is executed, a model response result is obtained, the influence of mineral exploitation on surface subsidence is quantified, operation is easy, and practical application is easy.
Owner:江西省煤田地质局二二四地质队
Coal rock three-dimensional strain field visualization system and method under complex geological structure
PendingCN111812022ARealize TrackingClear divisionAdditive manufacturing apparatusSamplingWire rodClassical mechanics
The invention provides a coal rock three-dimensional strain field visualization system and method under a complex geological structure. The system comprises a stress condition simulation system and astrain monitoring system. The stress condition simulation system comprises an analog simulation experiment frame, a loading system and a circular slideway. The method comprises the steps of preparinga 3D printing wire rod, printing a strain visualization similar model, simulating a stratum inclination angle and a gas-containing condition, applying a stress field, recording a micro-capsule ruptureand dyeing condition in the model and the like. The system can realize tracking of generation and development of cracks in a complex geological condition analog simulation model, and track three-dimensional movement of internal ink dots to draw a displacement field four-dimensional image.
Owner:CHONGQING UNIV
Systems and Methods for Assisted Property Modeling
InactiveUS20150032431A1GeomodellingAnalogue processes for specific applicationsGuidelineTheoretical computer science
Systems and methods for updating a property map during conditional simulation or unconditional simulation using interactive azimuth guidelines, well data and / or variogram parameters.
Owner:LANDMARK GRAPHICS
Power wholesale market mode evaluation and risk analysis method, device and system
InactiveCN111784205AAnalytical data is accurateMarket predictionsResourcesMarket simulationAnalysis data
Owner:南方电网能源发展研究院有限责任公司
Safety simulation method and device for space man-machine interaction system
ActiveCN112507608AComprehensive recognitionEnter detailsDesign optimisation/simulationMachineSpaceflight
The invention provides a safety simulation method and device for a space man-machine interaction system. The method comprises the steps of identifying a task implementation process of the space man-machine interaction system according to a task profile of the space man-machine interaction system; determining a human error factor, an equipment fault factor, an environmental disturbance factor and acoupling factor of the space human-computer interaction system according to the task implementation process; obtaining consequence states of the factors; quantifying the occurrence probability of thefactors based on a human factor reliability model, an equipment fault tree model, an environmental disturbance Markov model and a coupling factor Bayesian network model; according to the probabilityof occurrence and the mission profile, setting an operation condition of a space man-machine interaction system mission; simulating and operating tasks of the space man-machine interaction system, anddetermining the safety reliability of the space man-machine interaction system according to a simulation operation result and a consequence state. The invention has feasibility and effectiveness, canbe popularized and applied to the field of spaceflight, and guides safety modeling simulation of a space man-machine system.
Owner:CHINA AEROSPACE STANDARDIZATION INST
Casing containment analysis method for blade offset loss
The invention discloses a casing containment analysis method for blade offset loss. The casing containment analysis method comprises the following steps: establishing a finite element model of a bladeand a casing; assigning the constitutive parameters according to the casing and blade materials, and establishing a constitutive model; setting boundary conditions and initial conditions of the finite element model; simulating the loss process of different offset angles of the flying-off blade relative to the casing; and performing finite element calculation, analyzing a simulation result, and judging whether the working condition of the simulated deflection angle is a dangerous working condition or not. Compared with the prior art, the invention has the remarkable advantages that different deflection angles of blade loss relative to the casing under the real condition are considered during numerical simulation analysis of the containment of the casing, dangerous states under different deflection angles are analyzed, and the blade loss process under the real condition is simulated more truly.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Measurement and calculation method for soil infiltration parameter of field scale
ActiveCN107871042AImprove irrigation managementSimple designData processing applicationsDesign optimisation/simulationSoil infiltrationTest region
The invention relates to a measurement and calculation method for a soil infiltration parameter of a field scale. The method comprises the steps of performing a K-S normality test on soil infiltrationparameter actual measurement data of each test point; obtaining soil infiltration parameter theoretical data obeying normal distribution; calculating a test variation function of the soil infiltration parameter theoretical data, and performing fitting on the test variation function by using a theoretical variation function model to obtain a theoretical semivariance function of the soil infiltration parameter; according to the theoretical semivariance function and a statistical eigenvalue, calculating a non-conditional simulation value Z*s of the soil infiltration parameter and a non-conditional simulation value Zs of the soil infiltration parameter of an untested position of a to-be-tested region; performing Kriging interpolation on the soil infiltration parameter actual measurement dataand the non-conditional simulation value Z*s of the soil infiltration parameter to obtain data Z*ok and Z*sok; and according to the non-conditional simulation value Zs and the data Z*ok and Z*sok, calculating a soil infiltration parameter value of the untested position of the to-be-tested region. According to the method, the technical support can be provided for optimizing ground irrigation systemdesign and improving field irrigation management level.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
High-conservation hydrological and hydrodynamic coupling simulation method
PendingCN111985082AAddressing One-Way FeedbackData processing applicationsDesign optimisation/simulationHydrometryEngineering
The invention discloses a high-conservation hydrological and hydrodynamic coupling simulation method. The method specifically comprises the following steps: 1, collecting basic data of a research area; 2, setting basic parameters of the research area, wherein the basic parameters comprise peripheral boundary conditions, simulation time step length and simulation total time length of the research area; 3, calculating the runoff q'of the earth surface sub-backwater area of the research area; 4, conducting pipe network system simulation calculation, and obtaining the rainwater well water depth hnof the current time step length; and 5, judging whether the pipe network system is overloaded or not, and starting surface two-dimensional hydrodynamic simulation when the pipe network system is overloaded. The hydrological ground surface and the hydrodynamic pipe network are coupled through the rainwater well, the local submergence condition is considered through the hydrodynamic method, and theoverflow process of the pipe network overflowing on the ground surface is effectively simulated.
Owner:XIAN UNIV OF TECH
Computer-implemented simulation method for injection-molding process
ActiveUS10960592B2Design optimisation/simulationSpecial data processing applicationsProcess engineeringMachine
A computer-implemented simulation method for use in a molding process by a computer process is disclosed. The method includes steps of specifying a simulating domain comprising a mold cavity and a barrel of an injection machine, wherein the barrel is configured to connect to the mold cavity; creating at least one mesh by dividing at least part of the simulating domain; specifying boundary conditions of the mesh by taking into consideration at least one motion of a screw in the barrel; and simulating a first injection-molding process of a molding material by using the boundary conditions to generate a plurality of molding conditions.
Owner:CORETECH SYST
Acid fracturing simulation method considering dynamic process of variable-viscosity acid
ActiveCN110797092AOvercome the defect of low compliance rateFluid removalChemical processes analysis/designAcid fracturingFiltration
The invention discloses an acid fracturing simulation method considering a dynamic process of variable viscosity acid. The method comprises the following steps of: respectively measuring the relationship between the viscosity of the variable-viscosity acid and a shearing rate, temperature, calcium ion concentration, a pH value and surfactant concentration and establishing a variable-viscosity constitutive equation, simulating the flowing and reaction process of the variable-viscosity acid liquid in a fracture system to obtain a pressure profile in the fracture system, simulating and calculating the reaction process of the variable-viscosity acid in a matrix by taking the pressure profile in the fracture system as an inner boundary condition and the ground pressure as an outer boundary condition, simulating the viscosity change condition of the acid liquid in the matrix system and calculating to obtain the filtration speed, and bringing the obtained filtration speed into the pressure profile in the fracture system in the step. The method is used for solving the problem that in the prior art, the acid fracturing simulation technology does not consider the dynamic filtration process of the variable-viscosity acid, so that the coincidence rate of the variable-viscosity acid fracturing simulation fracture length and the actual situation is not high, and the purpose that the acid fracturing fracture form considering the dynamic reduction rate of the variable-viscosity acid can be obtained through simulation is achieved.
Owner:CHENGDU NORTH OIL EXPLORATION DEV TECH
Systems and methods for assisted property modeling
Owner:LANDMARK GRAPHICS CORP
Coal rock three-dimensional strain field visualization system and method under mining influence
PendingCN111812021ARealize TrackingClear divisionAdditive manufacturing apparatusFuel testingClassical mechanicsEngineering
The invention provides a coal rock three-dimensional strain field visualization system and method under mining influence. The system comprises a stress condition simulation system and a strain monitoring system. The stress condition simulation system comprises an analog simulation experiment frame, a loading system and a circular slideway. The method comprises the steps of preparing a 3D printingwire rod, printing a strain visualization similar model, simulating a stratum inclination angle and a gas-containing condition, applying a stress field, recording a micro-capsule rupture and dyeing condition in the model and the like. The system can realize tracking of generation and development of cracks in a complex geological condition analog simulation model, and track three-dimensional movement of internal ink dots to draw a displacement field four-dimensional image.
Owner:CHONGQING UNIV
Post-evaluation method and device for new energy consumption increase amount
PendingCN113452081APower-on policy simplificationRealize scientific quantitative evaluationSingle network parallel feeding arrangementsNew energyControl engineering
The invention relates to the technical field of new energy grid connection and control, particularly provides a post-evaluation method and device for a new energy consumption increase amount, which aim to solve the technical problem that the new energy consumption increase amount is difficult to accurately quantify and evaluate. According to the method, starting and operation strategies of a power supply and a power grid when no measures are taken are learned by using a time sequence operation optimization model, and then the new energy consumption amount of the power grid when no measures are taken is simulated and calculated based on a given boundary condition, so that accurate quantitative evaluation of the new energy consumption improvement amount is realized.
Owner:CHINA ELECTRIC POWER RES INST +3
Multi-particle-size filler filling type composite material fluidity simulation method
PendingCN114357902AImprove liquidityDesign optimisation/simulationDiscrete element simulationShear rate
The invention discloses a multi-particle-size filler filling type composite material fluidity simulation method. The method comprises the following steps: setting geometric information of a filler, and dividing unit grids according to the maximum filler particle size; according to discrete element simulation, filler physical property parameters and filler-filler and filler-wall surface contact models are determined, and a particle generator and model boundary conditions are defined; generating a particle random distribution structure by adopting a particle diameter increasing method, and setting an initial velocity of particle linear distribution; determining density and viscosity models of the base material, setting boundary conditions, and simulating three-dimensional Couette flow of the base material at a given shear rate; generating a dynamic link library file by discrete element software, and importing a coupling file; adopting computational fluid mechanics software to set coupling parameters, and importing a coupling file; and calculating the viscosity of the composite material by combining the coupling calculation of computational fluid mechanics software and discrete element software. The method can more accurately and comprehensively analyze the viscosity change rule of various composite materials filled with fillers in different shapes.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Dry-type transformer mechanical vibration simulation analysis method under highway transportation working condition
PendingCN111368475AQuality assuranceStable structureGeometric CADDesign optimisation/simulationTransformerStructural engineering
The invention discloses a dry-type transformer mechanical vibration simulation analysis method under a highway transportation working condition, and the method comprises the steps: employing finite element simulation software HyperWorks to simulate the structural size, assembly relation and fixing form of a transformer to the maximum degree, guaranteeing the grid quality, and improving the solvingefficiency; starting from the perspective of probability statistics; selecting a corresponding road transportation machinery environment condition to simulate road surface bumping borne by the carrying vehicle; random vibration simulation of the transformer is completed; obtaining a stress response probability statistical value through simulation; comparing the mechanical strength attributes of the material; according to the method, the structure where the mechanical strength of the transformer is most likely to fail in the highway transportation process is judged, the problem that the randomness of road bump cannot be simulated through transient impact simulation is solved, the reliability of the transformer under the highway transportation working condition can be evaluated in advance in the product research and development stage, and the most reliable product structure is optimized.
Owner:HAINAN JINPAN INTELLIGENCE TECH CO LTD
Spring air hole sleeve structure performance analysis method
InactiveCN111651942AImprove reliabilityReduce manufacturing costGeometric CADDesign optimisation/simulationCoil springSpring steel
The invention discloses a spring air hole sleeve structure performance analysis method. The method comprises the following steps: selecting an air inlet section of a spring air hole sleeve as a research object, modeling an area through which fluid flows by using CFX software in computational fluid dynamics, setting physical property parameters for a basin medium, and setting boundary conditions ofa basin according to actual conditions; simulating and researching the change of the taper angle and spring stroke structure parameters of the upper end part of the valve rod of the air inlet sectionof the spring air hole sleeve on the fluid flow parameters of the air inlet section of the spring air hole sleeve; selecting common spring steel as a reference item of spiral spring raw materials, additionally selecting two spring materials, and carrying out analysis in the mode that finite element numerical simulation and traditional theoretical calculation are combined; obtaining S-N curves ofthe three spring materials through theoretical calculation, and carrying out static analysis and fatigue life simulation of the spiral cylindrical spring on the basis of the S-N curves. The method hasengineering practical significance for the service life of the spring air hole sleeve under the actual working condition, the design reliability can be improved, the production cost is reduced, and the design period is shortened.
Owner:HEFEI KUNQING MASCH TECH CO LTD
A Field Scale Soil Infiltration Parameter Calculation Method
ActiveCN107871042BImprove irrigation managementSimple designData processing applicationsDesign optimisation/simulationSoil infiltrationTest region
The invention relates to a measurement and calculation method for a soil infiltration parameter of a field scale. The method comprises the steps of performing a K-S normality test on soil infiltrationparameter actual measurement data of each test point; obtaining soil infiltration parameter theoretical data obeying normal distribution; calculating a test variation function of the soil infiltration parameter theoretical data, and performing fitting on the test variation function by using a theoretical variation function model to obtain a theoretical semivariance function of the soil infiltration parameter; according to the theoretical semivariance function and a statistical eigenvalue, calculating a non-conditional simulation value Z*s of the soil infiltration parameter and a non-conditional simulation value Zs of the soil infiltration parameter of an untested position of a to-be-tested region; performing Kriging interpolation on the soil infiltration parameter actual measurement dataand the non-conditional simulation value Z*s of the soil infiltration parameter to obtain data Z*ok and Z*sok; and according to the non-conditional simulation value Zs and the data Z*ok and Z*sok, calculating a soil infiltration parameter value of the untested position of the to-be-tested region. According to the method, the technical support can be provided for optimizing ground irrigation systemdesign and improving field irrigation management level.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Ventilation guiding device, application and method
PendingCN114440411AAccurate graspEasy to masterMechanical apparatusData processing applicationsData simulationSimulation
A ventilation guide device according to one embodiment of the present invention comprises: a structure data acquisition unit for acquiring structure data of a building; a simulation data acquisition unit that acquires simulation data for calculating the internal air quality state of the building; a condition selection unit that selects, on the basis of a user input, at least one condition that affects the internal air quality state of the building; a simulation unit that simulates the internal air quality state of the building by using a simulation model in which structural data of the building, the simulation data, and a selection value of a condition selected according to the input of the user are input; and a ventilation condition calculation unit that calculates, using the simulation model, a ventilation condition for improving the internal air quality state of the building.
Owner:KYUNGDONG NAVIEN
Non-circular gear dynamic contact characteristic analysis method based on tooth surface topological structure
InactiveCN111859569ASave resourcesAvoid writingGeometric CADDesign optimisation/simulationEngineeringGear tooth
The invention discloses a non-circular gear dynamic contact characteristic analysis method based on a tooth surface topological structure, and belongs to the field of gear engagement. The method comprises the steps that firstly, KISSsoft software is used for generating an accurate two-dimensional model of the non-circular gear, a three-dimensional model of the non-circular gear is generated in Creo three-dimensional software, and a tooth surface topological structure and a corresponding coordinate identifier are established; and are imported into Hypermesh software to carry out gear mesh division, so that the tooth surface mesh nodes are matched with the topological structure; and finally, boundary conditions are defined in LS-DYAN software, a gear is simulated to rotate for a circle undera bearing condition, and finally, the model is solved; and the change trends of tooth surface stress, strain, pressure, displacement and speed of the gear teeth in the meshing process are obtained. According to the method, writing and solving of complex programs in the non-circular gear dynamic contact characteristic analysis process are reduced and avoided, workloads and resources are saved, anda basis is provided for non-circular gear dynamic contact analysis.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY
A soil heavy metal risk prediction method
The invention provides a soil heavy metal risk prediction method. Based on a sequential condition simulation method, the contents of various heavy metals in the soil in a target area can be estimated,and a visualized risk map of heavy metals in the soil is generated by integrating various heavy metal contents based on a Hakanson potential ecological risk index method. Compared with a traditionalKriging interpolation method, the sequential condition simulation method can better reflect the uncertainty of heavy metal distribution, overcomes the smoothing effect of the traditional Kriging interpolation method, and has better predictability; the Hakanson potential ecological risk index method can scientifically synthesize various soil heavy metal contents and obtains the more accurate assessment risk; the method is relatively intuitive to observe high-risk areas from the visible soil heavy metal risk map, makes preventive measures in time, and has good practicability.
Owner:SOUTH CHINA AGRI UNIV
Hydraulic shear stimulation dry hot rock reservoir anti-reflection simulation experiment system and experiment method
ActiveCN114152554APrevent closureSimple structurePermeability/surface area analysisThermodynamicsAutomatic control
The invention discloses a hydraulic shear stimulation dry hot rock reservoir anti-reflection simulation experiment system and experiment method. The system comprises an experiment part, a water circulation part and a control part; the experiment part is used for carrying out a simulation experiment on a test piece and comprises a frame, an experiment assembly and a pressure applying assembly are fixedly connected to the frame, and the pressure applying assembly and the frame are fixedly installed; the test piece is arranged in the experiment assembly; the water circulation part is used for performing water circulation simulation hydraulic shearing in a simulation experiment; the water circulation part comprises a water inlet assembly and a water return assembly; the water inlet assembly and the water return assembly are communicated with the experiment assembly; the control part is used for automatically controlling the experiment; the control part is electrically connected with the experiment part and the water circulation part. The experimental device is simple in structure, the experimental method is novel, the constant-rigidity boundary condition under the deep stratum can be truly simulated, the hydraulic shear slippage of the rock stratum can be simulated, the law and condition of slippage can be explored, theoretical support is provided for deep geothermal reservoir anti-reflection, and the process of geothermal large-scale commercial mining is accelerated.
Owner:CHINA UNIV OF MINING & TECH
Ventilator energy-saving evaluation mode based on numerical simulation
PendingCN111914398AEase of energy saving evaluationAccurately analyze energy consumptionGeometric CADDesign optimisation/simulationPhysical modelControl theory
The invention discloses a ventilator energy-saving evaluation mode based on numerical simulation, and the mode comprises the following steps: 1), building a ventilator physical model; 2) carrying outmodel mesh generation; 3) selecting a calculation method and defining boundary conditions; 4) performing simulation calculation and analyzing a simulation result; 5) carrying out caenergy-saving evaluation analysis. The invention belongs to the field of ventilator energy conservation, and particularly provides a ventilator energy conservation evaluation mode based on numerical simulation. The ventilator energy conservation evaluation mode is applied to ventilator energy conservation evaluation through numerical simulation, predicts ventilator energy conservation efficiency and accurately evaluates ventilator energy conservation.
Owner:北京赛西认证有限责任公司
Large-scale dike piping dangerous case evolution mechanism physical simulation device
The invention discloses a large-scale dike piping dangerous case evolution mechanism physical simulation device, and relates to the technical field of dike piping dangerous case evolution mechanism physical simulation devices. According to the large-scale dike piping dangerous case evolution mechanism physical simulation device, the impermeability of a sand layer pressure water head and a covering layer is monitored according to a seepage field monitoring system; under the condition that the upstream area of the covering layer with the piping opening which not expanded and the upstream area of the covering layer with the piping opening which not expanded can resist the jacking effect of a confined water head and cannot be damaged, the covering layer is exposed by disassembling the cover plate on the detachable and replaceable cover plate system, conditions are provided for the piping opening which is not to be restrained when the piping opening is expanded to the upstream, and a real dike piping danger expansion process is simulated.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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