首页 | 本学科首页   官方微博 | 高级检索  
     检索      


An analytical solution for ground water transit time through unconfined aquifers
Authors:Chesnaux R  Molson J W  Chapuis R P
Institution:Ecole Plytechnique de Montréal, Department of Civil, Geological and Mining Engineering, Montreal, Quebec, Canada. romain.chesnaux@polymtl.ca
Abstract:An exact, closed-form analytical solution is developed for calculating ground water transit times within Dupuit-type flow systems. The solution applies to steady-state, saturated flow through an unconfined, horizontal aquifer recharged by surface infiltration and discharging to a downgradient fixed-head boundary. The upgradient boundary can represent, using the same equation, a no-flow boundary or a fixed head. The approach is unique for calculating travel times because it makes no a priori assumptions regarding the limit of the water table rise with respect to the minimum saturated aquifer thickness. The computed travel times are verified against a numerical model, and examples are provided, which show that the predicted travel times can be on the order of nine times longer relative to existing analytical solutions.
Keywords:
本文献已被 PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号