Nonstationary stochastic analysis of flow in a heterogeneous unconfined aquifer subject to spatially-random periodic recharge

Ching Min Chang, Hund-Der Yeh*

*此作品的通信作者

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

The problem of two-dimensional groundwater flow in a heterogeneous unconfined aquifer under periodic random forcing in time is analyzed from a stochastic point of view. It is assumed that the periodic random forcing, namely random recharge, can be represented by a sinusoidal function in time. Analytical solutions are developed through the nonstationary spectral approach in conjunction with the principle of superposition. The results, namely the variances of hydraulic head and specific discharge, are expressed in terms of statistical properties of hydraulic parameters and recharge field. It can be concluded from the analytical results that the mean recharge rate and integral scale of spatially random recharge fluctuations play essential roles in enhancing the variability of hydraulic head and specific discharges.

原文English
頁(從 - 到)163-168
頁數6
期刊Journal of Hydrology
395
發行號3-4
DOIs
出版狀態Published - 15 12月 2010

指紋

深入研究「Nonstationary stochastic analysis of flow in a heterogeneous unconfined aquifer subject to spatially-random periodic recharge」主題。共同形成了獨特的指紋。

引用此