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...

Examples

Embodiment 1

[0057] Such as figure 1 , 2 As shown in the present embodiment, a high-gravity flow field simulation experiment device for a different-gravity fluid proposed in this embodiment includes a control center 1, a centrifuge 2, a first fluid injection device, a second fluid injection device, a simulation experiment chamber 6, an overflow Box 10 and flow field-concentration field monitoring system 7; the density of the first fluid is less than the second fluid; the first fluid injection device, the second fluid injection device, the simulation experiment chamber 6, the overflow box 10 and the flow field -The concentration field monitoring system 7 is all placed on the centrifuge; the first fluid injection device, the second fluid injection device, and the overflow tank 10 are all communicated with the simulation experiment chamber 6 through their respective pipelines; the control center 1 controls the first The injection behavior of a fluid injection device and a second fluid inject...

Embodiment 2

[0074] The implementation process and beneficial effects of the present invention will be described in detail below by taking the simulation experiment of freshwater-brine convection in the process of water-solution cavity building in a salt chamber as an example.

[0075] At present, the application of salt rock caverns for energy underground storage is increasing day by day. In order to ensure the safety of energy reserves, it is necessary to control the shape of salt caverns during the construction process. The evolution law of the flow field distribution inside the salt cavern is the key to the shape development of the salt cavern. Since the salt cavern is buried deep underground and has a huge size (hundred meters), there is no effective on-site monitoring method for the complex convection-dissolution flow field in the salt cavern. Experiment to explore. The simulation and observation of the fluid convection in the salt cavity through indoor experiments and other means i...

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...

Examples

Embodiment 1

[0057] Such as figure 1 , 2 As shown in the present embodiment, a high-gravity flow field simulation experiment device for a different-gravity fluid proposed in this embodiment includes a control center 1, a centrifuge 2, a first fluid injection device, a second fluid injection device, a simulation experiment chamber 6, an overflow Box 10 and flow field-concentration field monitoring system 7; the density of the first fluid is less than the second fluid; the first fluid injection device, the second fluid injection device, the simulation experiment chamber 6, the overflow box 10 and the flow field -The concentration field monitoring system 7 is all placed on the centrifuge; the first fluid injection device, the second fluid injection device, and the overflow tank 10 are all communicated with the simulation experiment chamber 6 through their respective pipelines; the control center 1 controls the first The injection behavior of a fluid injection device and a second fluid inject...

Embodiment 2

[0074] The implementation process and beneficial effects of the present invention will be described in detail below by taking the simulation experiment of freshwater-brine convection in the process of water-solution cavity building in a salt chamber as an example.

[0075] At present, the application of salt rock caverns for energy underground storage is increasing day by day. In order to ensure the safety of energy reserves, it is necessary to control the shape of salt caverns during the construction process. The evolution law of the flow field distribution inside the salt cavern is the key to the shape development of the salt cavern. Since the salt cavern is buried deep underground and has a huge size (hundred meters), there is no effective on-site monitoring method for the complex convection-dissolution flow field in the salt cavern. Experiment to explore. The simulation and observation of the fluid convection in the salt cavity through indoor experiments and other means i...

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