Super-gravity flow field simulation experiment device and super-gravity flow field simulation experiment method for density fluid

Abstract

The invention discloses a super-gravity flow field simulation experiment device and a super-gravity flow field simulation experiment method for density fluid. The super-gravity flow field simulation experiment method includes filling a simulation experiment cavity with heavy fluid at initial moments, injecting dye light fluid into the experiment cavity by a first fluid injection device and carrying out real-time observation and data transmission by a flow field-concentration field monitoring system; ultimately retaining mixed dye fluid on the top of the experiment cavity; carrying out a singleexperiment, then gradually injecting the heavy fluid into the bottom of the experiment cavity until all the mixed dye fluid on the top of the experiment cavity flows into an overflow tank via an overflow pipe, restoring the fluid in the simulation experiment cavity to be in initial states at the moment and allowing a next experiment to be carried out. The super-gravity flow field simulation experiment device and the super-gravity flow field simulation experiment method have the advantages that similar simulation experiments of density fluid convection can be carried out by the aid of super-gravity environments, and accordingly the similarity of the simulation experiments can be greatly improved; multi-parameter combinational experiments can be carried out in a centrifugal rotation period,and accordingly the super-gravity flow field simulation experiment device and the super-gravity flow field simulation experiment method are high in experiment speed, monitoring density and precision,low in cost and wide in range.

Description

technical field [0001] The invention belongs to the field of fluid flow field simulation, and in particular relates to a hypergravity flow field simulation experiment device and method for fluids of different densities. Background technique [0002] For large-scale hyperbaric fluid convection phenomena, numerical simulation methods are currently used to simulate and predict them. Since the convection of hyperbaric fluids involves viscous force and gravity at the same time, it is necessary to satisfy the Reynolds similarity criterion and the Froude similarity criterion at the same time. However, the simulation experiments on the laboratory scale are limited by the immutable gravity of 1g, so they are not well equipped. cannot be directly used to guide field fluid laws. [0003] In recent years, the application of ultra-gravity centrifuges has made gravity an adjustable variable in the test, and geotechnical experiments based on ultra-gravity centrifuges have gradually been w...

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Problems solved by technology

Since the convection of hyperbaric fluids mostly involves viscous force and gravity at the same time, it needs to satisfy the Reynolds similarity criterion and the Froude similarity criterion at the same time, and the simulation experiment of the laboratory scale is limited by the immutable gravity of 1g, so it is not good enough. cannot be directly used to guide the field fluid law

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