Stochastic Analysis of Unsaturated Flow Subject to Temporally Correlated Infiltration

Ching Min Chang, Hund-Der Yeh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In this article, we attempt to quantify the variability of water pressure head in response to temporally correlated fluctuations in infiltration rate in partially saturated heterogeneous formations. This study concentrates on the unsaturated case of predominantly vertical movement of moisture. A closed-form solution is developed to analyze the impacts of the temporal correlation scale of infiltration fluctuations and the spatial correlation scale of log-saturated hydraulic conductivity (lnKS) field on the variability in water pressure head. Our result indicates that the temporal correlation scale of infiltration process or the spatial correlation scale of lnKS field takes a role in increasing the variability in the pressure head.

Original languageEnglish
Pages (from-to)289-298
Number of pages10
JournalTransport in Porous Media
Volume104
Issue number2
DOIs
StatePublished - Sep 2014

Keywords

  • Stochastic analysis
  • Unsaturated flow
  • Water pressure head variance

Fingerprint

Dive into the research topics of 'Stochastic Analysis of Unsaturated Flow Subject to Temporally Correlated Infiltration'. Together they form a unique fingerprint.

Cite this