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Visual analysis method for flow oscillation after gas is injected into lead bismuth fluid

An analysis method and fluid technology, which is applied in the field of nuclear power generation and reactor safety analysis, can solve problems such as calculation of thermal properties without in-depth research, and achieve the effect of saving calculation time and improving efficiency

Inactive Publication Date: 2014-08-06
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] Among the existing journal documents, the journal with the article number 1005-6548 (2013) 04-0336-05 published in the 2013 Volume 28 Issue 4 of the Journal of Electric Power, the title of the journal is the development and research of the thermal physical properties of liquid lead-bismuth alloy , the journal disclosed the calculation program of physical properties, but the program knowledge simply described the calculation process of thermal physical properties, and did not study the calculation of thermal physical properties in depth. Oscillation phenomena are studied

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  • Visual analysis method for flow oscillation after gas is injected into lead bismuth fluid
  • Visual analysis method for flow oscillation after gas is injected into lead bismuth fluid
  • Visual analysis method for flow oscillation after gas is injected into lead bismuth fluid

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[0048] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.

[0049] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0050] In a preferred embodiment of the present invention, such as Figure 1-3 As shown in , a visual analysis method for flow oscillation of lead-bismuth fluid after gas injection is provided. The method uses a measuring device and a double-pipe circulation device to complete the calculation and analysis of flow oscillation of lead-bismuth fluid after gas injection.

[0051] In a preferred embodiment, as ...

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Abstract

The invention discloses a visual analysis method for flow oscillation after gas is injected into lead bismuth fluid. The method comprises the steps that (1), a lead bismuth alloy is injected into a double-pipe circulation device, the different amounts of helium or argon is injected into the lead bismuth alloy, and then a measuring device is used for calculating thermophysical parameters at different temperatures; (2), grid dividing is carried out on the double-pipe circulating device, the solution sequence of a CFD calculation model is set, and a convergence control criterion is set; (3), a solution equation is listed according to the set solution sequence, calculation models of the parameters of heat transfer coefficient are selected according to the natural convection feature of the lead bismuth alloy, and load data are calculated and transferred by means of an iterative loop mode; (4), CFD software is utilized for converting data information into image information and displaying the image information visually.

Description

technical field [0001] The invention belongs to the field of nuclear power generation and reactor safety analysis, and specifically relates to the field of analysis of thermal properties and flow oscillations at different temperatures after lead-bismuth fluid is injected with different gases. Background technique [0002] Lead-bismuth alloy, a special material, has many differences in its physical and chemical properties compared with the previous common stack coolants. It is necessary to carry out thermal-hydraulic analysis of lead-bismuth alloys. The physical and chemical properties of lead-bismuth alloys have important With many special features, it has the characteristics of high boiling point and low melting point, as well as good neutronic properties, good radiation resistance and heat transfer performance. One form of natural circulation of lead and bismuth is to inject gas, which is mainly to improve the ability of natural circulation, which is called cold circulatio...

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Application Information

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IPC IPC(8): G06F19/00G21C17/112G21C17/032
CPCY02E30/30
Inventor 周涛霍启军李云博邹文重
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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