Numerical Simulation Method of Controlling Seawater Intrusion in Confined Aquifer by Inflating Method

A technology for confined aquifers and seawater intrusion, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problems of expensive research, time-consuming and labor-intensive

Inactive Publication Date: 2016-06-15
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, although the aeration method is theoretically feasible to control seawater intrusion, the cost of conducting research on the control effect of the aeration method is expensive, time-consuming and labor-intensive.

Method used

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  • Numerical Simulation Method of Controlling Seawater Intrusion in Confined Aquifer by Inflating Method
  • Numerical Simulation Method of Controlling Seawater Intrusion in Confined Aquifer by Inflating Method
  • Numerical Simulation Method of Controlling Seawater Intrusion in Confined Aquifer by Inflating Method

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Embodiment Construction

[0086] The technical scheme adopted in the present invention is:

[0087] Step 1: Establish a groundwater gas-liquid two-phase flow and solute transport model, including basic governing equations and auxiliary equations, without considering the influence of temperature on the system. details as follows:

[0088] The basic governing equations of the model are:

[0089] ∂ M κ ∂ t = - div ( F κ ) + q κ - - - ( 1 )

[0090] In the formula, M κ Indicates the cumulative mass density of κ components (pure water w, reference brine b and air a), F κ is the flux density of the κ component, including the advective flux density...

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Abstract

The invention relates to the technical field of preventing seawater intrusion. For controlling the seawater intrusion of the confined aquifer, the technical scheme adopted in the present invention is: a numerical simulation method for controlling the seawater intrusion of the confined aquifer by the aeration method, comprising the following steps: Step 1: Establishing groundwater gas-liquid two-phase flow and solute transport The model, including basic governing equations and auxiliary equations, does not consider the influence of temperature on the system; Step 2: Model solution; Step 3: Model boundary conditions determination; Step 4: Model verification: using groundwater gas-liquid two-phase flow and solute transport The model simulates and analyzes the static balance of the confined aquifer under the combined action of salt and fresh water, and compares and verifies it with the calculation results of existing literature; Step 5: Analyze the effect of the aeration method on the control of seawater intrusion in the confined aquifer. The invention is mainly applied to prevent seawater intrusion.

Description

technical field [0001] The invention relates to the technical field of preventing seawater intrusion, in particular to a numerical simulation method for controlling seawater intrusion in a confined aquifer by an aeration method. Background technique [0002] In recent years, with the rapid economic development in coastal areas, the overexploitation of groundwater has become more and more serious, resulting in the continuous decline of groundwater table and the intrusion of seawater into the underground aquifer, forming the phenomenon of seawater intrusion. my country's coastline is as long as 1.8×104Km, and there are more than a dozen cities with seawater intrusion, and the intrusion area has exceeded 10,000Km 2 , The resulting salinization of farmland soil, corrosion of underground equipment, and deterioration of water quality have seriously hindered the economic and social development of coastal areas. Therefore, it is of great scientific value and social significance to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06F19/00
Inventor 孙冬梅臧永歌张杨
Owner TIANJIN UNIV
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