Coupled Fluid Flow in Energy, Biology and Environmental Research

Book Series: Progress in Computaional Physics (PiCP)

Volume 2

by

Matthias Ehrhardt

DOI: 10.2174/97816080525471120101
eISBN: 978-1-60805-254-7, 2012
ISBN: 978-1-60805-691-0
ISSN: 1879-4661 (Print)



Indexed in: EBSCO, Ulrich's Periodicals Directory.

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Modeling of Transfers at a Fluid-Porous Interface: A Multi-Scale Approach

- Pp. 13-31 (19)

M. Chandesris and D. Jamet

Abstract

Free flows above porous medium are present in many industrial or environmental applications. To study such problems, a common approach consists of coupling a free fluid model with a porous model, the transfers that occur at the fluid-porous interface being modeled through appropriate boundary conditions. However, the determination of these boundary conditions is not trivial and remains an important issue for the study of practical applications. Here, we present a multi-scale method that allows to determine the form of the boundary conditions and the value of the jump parameters that appear in the expression of these boundary conditions. This theoretical approach allows to analyze the physical nature of the jump coefficients, to understand the importance of the interface location and to determine whether these jump coefficients are intrinsic parameters or not.

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