Application of Adjoint State Method With Conjugate Gradient Method to Estimate Hydrogeological Parameters in Inclined Leaky Aquifer
Date Issued
2006
Date
2006
Author(s)
Yu, Sheng-Kai
DOI
zh-TW
Abstract
The purpose of this research is aimed on inverse estimating the hydrogeological parameter of an inclined leaky aquifer. The processes of inverse problem is used to simulate the free surface of groundwater flow in not horizontal and saturated unconfined aquifer, namely the Boussinesq equation.
An optimal procedure is proposed in this study to apply Conjugate Gradient Method to optimize the spatial distribution of the hydraulic conductivity and Adjoint State method is also used to enhance the efficiency of the optimization.
A sand box test is also designed to verify the proposed inversed model In this way, the best spatial distribution of the hydrogeological parameters is expected to be identified under the limited computational effort, such as computing time and computing equipments. Furthermore, the groundwater flow can be simulated successfully.
Subjects
傾斜滲漏含水層
共軛梯度法
伴隨狀態方法
Inclined Leaky Aquifer
Conjugate Gradient Method
Adjoint State Method
Type
thesis
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