Uranium tailing pond dam break three-dimensional numerical simulation method based on computational fluid mechanics

A technology of computational fluid dynamics and three-dimensional numerical value, which is applied in the field of uranium tailings pond safety, can solve the problems of high cost, error, and long test cycle of model tests, and achieve the effect of low method cost, high simulation accuracy, and short cycle

Pending Publication Date: 2020-06-05
THE FOURTH INST OF NUCLEAR ENG OF CNNC
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Problems solved by technology

The theoretical formula method is simple in form, mainly suitable for two-dimensional calculation, and often has a large error with the actual situation; the model test has been tested in practice and has a high de

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  • Uranium tailing pond dam break three-dimensional numerical simulation method based on computational fluid mechanics
  • Uranium tailing pond dam break three-dimensional numerical simulation method based on computational fluid mechanics
  • Uranium tailing pond dam break three-dimensional numerical simulation method based on computational fluid mechanics

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] Such as figure 1 As shown, the present invention proposes a three-dimensional numerical simulation method for uranium tailings dam failure based on computational fluid dynamics, which specifically includes the following steps:

[0034] S1. Data collection: collect basic data on uranium tailings ponds, including but not limited to design drawings of uranium tailings ponds, safety analysis reports, and measured topographic maps; carefully analyze and check the...

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Abstract

The invention discloses a uranium tailing pond dam break three-dimensional numerical simulation method based on computational fluid mechanics, and belongs to the field of uranium tailing pond safety.The method comprises the following steps: collecting basic data of a uranium tailing pond, and establishing three-dimensional models of a reservoir area, a dam body and a river within a certain downstream range of the uranium tailing pond by utilizing three-dimensional modeling software; dividing grids of the three-dimensional model according to regions, and determining boundary conditions of thetop of the uranium tailing pond and a downstream river channel; selecting a numerical simulation solving method; comparing a numerical simulation result with a model test result, verifying, calibrating, and optimizing the numerical model; drawing up a calculation scheme, and calculating dam break influence consequences of different dam break types by adopting the optimized three-dimensional numerical model; and analyzing the reliability and reasonability of a calculation result, and giving related data of a flow field, debris flow depth, flow and flow velocity change process of a calculation region. Three-dimensional numerical simulation is applied to uranium tailing pond dam break research, the method is low in cost, short in period and high in simulation precision, and the influence of uranium tailing pond dam break can be visually checked.

Description

technical field [0001] The invention relates to the technical field of uranium tailings pond safety, in particular to a three-dimensional numerical simulation method for uranium tailings pond dam break based on computational fluid dynamics. Background technique [0002] There is a large amount of uncompacted tailings sand and clarified water stored in the uranium tailings pond, which makes the tailings dam seepage line higher, and dam failure accidents may occur when heavy rainstorms and floods are encountered. Compared with uranium tailings ponds in other industries, uranium tailings ponds are a large source of radioactive radiation pollution formed by storing a large amount of uranium tailings. Once a dam failure occurs, a large amount of radioactive tailings will be lost from the pond, which will cause radiation pollution to the downstream environment. , seriously endangering the downstream ecological environment and public health. [0003] The commonly used research met...

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Application Information

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IPC IPC(8): G06F30/28G06F30/13
CPCG06T17/05
Inventor 胡良才李哲辉李玉雷郭大平
Owner THE FOURTH INST OF NUCLEAR ENG OF CNNC
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