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Seepage failure discrete element simulation method

An analog method and discrete element technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of large amount of calculation, long simulation calculation time, low calculation efficiency, etc., and achieve the effect of improving the speed of simulation calculation.

Active Publication Date: 2019-12-20
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0002] In the current discrete element software, the fluid-solid coupling method is mostly used to simulate the particle movement during seepage damage. Although this method is close to the actual physical process of seepage damage, it has a large amount of calculation, low calculation efficiency, and a long time for simulation calculation. Therefore, it is necessary to find a reasonable simplification method to simplify the simulation in order to improve the efficiency of seepage damage simulation calculation

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[0028] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0029] In the common seepage failure simulation in geotechnical engineering, people mainly focus on the force of particles under the action of fluid, and then analyze the state and characteristics of possible seepage failure. Aiming at the fluid-solid coupling simulation of seepage damage, this example proposes a simplified idea, and analyzes and verifies it.

[0030] In the current discrete element simulation, the following governing equations are often used to characterize the force state of the particles coupled with the fluid ...

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Abstract

The invention provides a seepage failure discrete element simulation method which comprises the following steps: in fluid-free solid particle simulation, applying a force related to the hydraulic gradient of a flow field, namely a gradient force, to replace the acting force of a fluid on particles so as to perform simplified simulation on a seepage failure phenomenon. On the basis of achieving thefluid-solid coupling effect, the fluid-solid coupling calculation process can be omitted, and the simulation calculation speed is increased.

Description

technical field [0001] The invention belongs to the technical field of seepage damage simulation, and in particular relates to a discrete element simulation method for seepage damage. Background technique [0002] In the current discrete element software, the fluid-solid coupling method is mostly used to simulate the particle movement during seepage failure. Although this method is close to the actual physical process of seepage failure, it has a large amount of calculation, low calculation efficiency, and a long time for simulation calculation. Therefore, it is necessary to find a reasonable simplification method to simplify the simulation in order to improve the efficiency of seepage damage simulation calculation. Contents of the invention [0003] The purpose of the present invention is to provide a discrete element simulation method for seepage damage to solve the above technical problems. [0004] The invention provides a discrete element simulation method for seepag...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李维朝邓刚仲琦余弘婧尚静石宋建正梁向前严俊蔡红谢定松肖建章孙黎明吴帅峰
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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