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Journal of Porous Media
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v13.i7.20
pages 601-611

FORCED CONVECTION WITH PHASE-LAGGED OSCILLATORY COUNTERFLOWIN A SATURATED POROUS CHANNEL

D A Nield
University of Auckland Auckland, New Zealand
Andrey V Kuznetsov
Department of Mechanical and Aerospace Engineering, North Carolina State University, Campus Box 7910, Raleigh, NC 27695-7910, USA

要約

An analytical solution is obtained for forced convection in a parallel plate channel occupied by a layered saturated porous medium with counterflow produced by pressure gradients oscillating in time about a zero mean. The case of asymmetrical constant heat-flux boundary conditions is considered, and the Brinkman model is employed for the porous medium. Expressions for the velocity, temperature distribution, and Nusselt number are obtained. It is found that oscillation about a zero mean does not cause the Nusselt number to oscillate, but in general its value is dependent on the frequency of oscillation, the variation becoming significant at large values of the frequency.


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