Macroscopic modeling of turbulent flow over a porous medium

H. C. Chan, W. C. Huang, J. M. Leu, C. J. Lai

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

Turbulent flow over a porous medium has been one of the most critical subjects in numerous environmental and engineering studies. The characteristics associated with the hybrid domain, involving both a porous region and a clear fluid region, are not fully understood primarily due to a lack of proper mathematical treatments of different regions and the fluid/porous interface. The objective of this study is to present a numerical implementation for examining such a hybrid domain. The governing equations were solved by a control volume method and the k-ε turbulent model in an attempt to predict the turbulent stresses. The present model treated the hybrid domain problem with a single domain approach by adopting the classical continuity interface conditions. Our numerical results were compared with the experimental data available in the literature for two cases. The effects of the porous medium on the flow properties, including porosity and permeability, were further investigated. Moreover, the calculated flow features were examined for three different Reynolds numbers. Results indicated that the penetration extent of turbulence was Darcy number- and porosity-dependent.

Original languageEnglish
Pages (from-to)1157-1166
Number of pages10
JournalInternational Journal of Heat and Fluid Flow
Volume28
Issue number5
DOIs
Publication statusPublished - 2007 Oct 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'Macroscopic modeling of turbulent flow over a porous medium'. Together they form a unique fingerprint.

Cite this