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Full-reactor-core thermal-hydraulic sub-channel simulation method

A technology of thermal hydraulics and simulation methods, applied in the direction of design optimization/simulation, etc., can solve the problems of large data volume and data volume growth, and achieve the effect of improving query efficiency and facilitating query and analysis

Active Publication Date: 2020-05-15
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

In particular, with the development of computing power, thermal-hydraulic sub-channel simulation software has continuously improved its simulation precision and expanded its scale. Research on advanced nuclear energy systems requires high-precision thermal-hydraulic simulations of the entire core, resulting in a large amount of data in the simulation process. With rapid growth, the problem of large data volume is more prominent

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  • Full-reactor-core thermal-hydraulic sub-channel simulation method

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Embodiment Construction

[0042] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0043] like figure 1 As shown, the whole-core thermal-hydraulic sub-channel simulation method provided by the embodiment of the present invention includes:

[0044] S101. Obtain parameter information for thermal-hydraulic sub-channel simulation of the whole core, where the parameter information includes: global number;

[0045] S102. According to the obtained parameter information, the sub-channel simulation software is executed in parallel through multiple slave processes, and each slave process outputs a corresponding partial simulation file. Each partial simulation file has a sub-channel, a gap, a component, and a fuel rod. partial number;

[0046] S103, according to the mapping relationship between the local number and the global number, analyze al...

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Abstract

The invention provides a full-reactor-core thermal-hydraulic sub-channel simulation method, which can greatly improve the query efficiency of whole reactor core global simulation data. The method comprises the following steps: acquiring parameter information for simulating a whole reactor core thermal hydraulic sub-channel, wherein the parameter information comprises a global number; according tothe obtained parameter information, executing the sub-channel simulation software in parallel through a plurality of slave processes, and enabling each slave process to output a corresponding local simulation file, wherein a sub-channel, a gap, an assembly and a fuel rod in each local simulation file respectively have a local number; according to the mapping relation between the local numbers andthe global numbers, analyzing all the local simulation files to obtain full reactor core global simulation output data stored in a database. The invention relates to the field of nuclear technology.

Description

technical field [0001] The invention relates to the field of nuclear technology, in particular to a method for simulating thermal-hydraulic sub-channels of the whole reactor core. Background technique [0002] The subchannel analysis method is widely used in reactor thermal-hydraulic design and safety analysis. Currently widely used sub-channel simulation software is based on the file system for data management. Taking the sub-channel simulation software Coolant Boiling in Rod Arrays–Two Fluid (CTF) as an example, to simulate the 157 components of the whole core, a single simulation will generate more than 630 files, and it is impossible to quickly query the entire core. Core simulation results. Reactor thermal design and research usually go through several stages, and designers, researchers, safety analysts, etc. will use a large number of calculation examples to continuously generate multiple versions of data. As far as the design process is concerned, designers need to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 王先梦卢旭张佳赵民富刘天才胡长军王学松杨宏伟杨文蔡银宇郭苏萱
Owner UNIV OF SCI & TECH BEIJING
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