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A Random Walk Particle Tracking Method for Numerical Simulation of Solute Transport in a Single Fracture

A technology of particle tracking and random walking, which is applied in the fields of instrumentation and informatics, can solve problems such as difficulty in functioning and high computing costs, and achieve the effect of fine movement

Active Publication Date: 2020-01-07
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
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Problems solved by technology

Traditional finite element and finite difference methods require high computational costs and are difficult to play a role in the numerical simulation of pollutant migration in fractured media

Method used

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  • A Random Walk Particle Tracking Method for Numerical Simulation of Solute Transport in a Single Fracture
  • A Random Walk Particle Tracking Method for Numerical Simulation of Solute Transport in a Single Fracture
  • A Random Walk Particle Tracking Method for Numerical Simulation of Solute Transport in a Single Fracture

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Embodiment Construction

[0015] Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0016] In this specification, the various embodiments described below to describe the principles of the present invention are illustrative only and should not be construed as limiting the scope of the invention in any way. The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of exemplary embodiments of the present invention as defined by the claims and their equivalents. The following description includes numerous specific details to aid in understanding, but these shoul...

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Abstract

The invention discloses a random walk particle tracking method used for numerical simulation of solute transport in a single fracture. The method comprises the steps of building a fracture medium concept model, and discretizing a fracture structure into a two-dimensional computing grid, wherein attributes of the computing grid include a gap width; building a fracture medium underground water flow mathematic model, performing computing to obtain simulated underground water flow field distribution, and performing comparative verification with an experimental observation value to obtain a simulated fracture structure close to real fracture distribution; and for the simulated fracture structure and the corresponding simulated underground water flow field distribution, simulating solute transport in a single fracture medium by using the random walk particle tracking method to obtain solute distribution.

Description

technical field [0001] The invention relates to the field of numerical simulation of seepage and solute migration in fractured groundwater, in particular to a random walking particle tracking method for numerical simulation of solute migration in a single fracture. Background technique [0002] Aqueous media can be broadly divided into porous media, fractured media and karst media. The fractured medium itself is bedrock with very weak water permeability. Many underground projects such as sanitary landfills and radioactive nuclear waste disposal choose fractured medium as a natural anti-seepage layer. With the development of such projects, more and more attention has been paid to their impact on groundwater, and the study of groundwater flow and solute transport in fractured media has therefore become an important field in water environment management and protection. [0003] The main channel for groundwater flow and solute migration in fractured media is fractures. Compared...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16Z99/00
CPCG16Z99/00
Inventor 孙源媛苏婧席北斗纪丹凤崔驰飞朱建超
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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