Percolation experiment method and die in pore medium

A technology of porous media and experimental methods, applied in the direction of educational appliances, teaching models, instruments, etc., can solve the problems that the porosity size cannot be accurately obtained, cannot be accurately defined, disadvantages, etc., to achieve accurate experimental results and facilitate observation of experimental phenomena , the effect of eliminating the influence

Inactive Publication Date: 2016-01-06
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current experimental method of seepage in porous media can fit the seepage parameters A and B, but it cannot accurately define the particle size (d), sorting and arrangement, and the porosity (n) under large-scale conditions in the field. Therefore, it is impossible to accurately obtain the important non-Darcy flow parameters α and β, which are important for studying the law of non-Darcy flow, which is not conducive to the quantitative study of the seepage state in porous media

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  • Percolation experiment method and die in pore medium
  • Percolation experiment method and die in pore medium
  • Percolation experiment method and die in pore medium

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with drawings and embodiments.

[0046] The invention provides a seepage test method in a porous medium, comprising the following steps:

[0047](1) Build the experimental mold: fill a cuboid tube with more than one group of cuboid units bonded by N×N×N balls 6 of equal particle size with a diameter of d, the cross section of the cuboid tube is A square with a side length of d×N, the connection between the sphere and the inner wall of the cuboid tube is fixed; the water inlet end of the cuboid tube is sealed with a cover plate provided with water inlet 1, and the water outlet end of the cuboid tube is provided with a water outlet 7. The cover plate is sealed;

[0048] Specifically include the following processes:

[0049] 1. First, fill the pellets with a side length of 6cm figure 2 In the square mold shown, the pellets are bonded into square units with chloroform, and after the chloroform is air-d...

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Abstract

The invention relates to a percolation experiment method and a die in a pore medium, which are used for solving the basic equation parameters of pore medium percolation by utilizing a cuboid tube filled with cubic units formed by adhering N*N*N equal-particle-size spherulites. By using the percolation experiment method and the die in a pore medium, disclosed by the invention, the influence of additional resistance caused by tube wall to an experiment is small and even can be neglected, so that a typical unit model capable of reflecting the percolation resistance characteristics of a pore medium model in cubic arrangement can be obtained, and the influence of the resistance of the tube wall to the experiment result can be eliminated.

Description

technical field [0001] The invention relates to a seepage experiment method in porous media and a mold, belonging to the technical field of seepage experiment exploration in porous media. Background technique [0002] Porous media refers to the skeleton composed of solid particles and the skeleton separated into a large number of dense clusters of tiny voids. [0003] The movement of fluid in porous media is called percolation. The mathematical equation that characterizes the basic law of water flow energy loss in the process of groundwater seepage—the basic seepage equation. The basic seepage equation is the basis of any quantitative description of groundwater movement and solute migration models. Its core is to answer the flow resistance of groundwater when it moves in porous media. The law of change. [0004] For a long time after Darcy's law was proposed, the linear equation of seepage was the only way to solve the law of groundwater movement. Until 1901, Forchheimer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/00
CPCG09B23/00
Inventor 万军伟李仲夏黄琨何林青梅伟标沈仲智
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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