ARTICLE:

• HEAT TRANSFER IN A CHANNEL WITH POROUS BAFFLES  download article

Marcelo. J. S. De Lemos
Department of Energy, IEME/ITA/CTA, San Jose dos Campos, Sao Paulo 12228-900, Brazil

N. B. Santos
Institute Tecnológico de Aeronáutica, São José dos Campos, Brazil

ABSTRACT

This work presents calculations for laminar flow in a channel having baffles made with solid and porous materials. The equations of mass continuity, momentum and energy are written for an elementary representative volume yielding a set of equations valid for the entire computational domain. These equations are discretized using the control volume method and the resulting system of algebraic equations is relaxed with the SIMPLE method. The presented numerical results for the friction factor f and for the Nusselt number Nu were compared with available data indicating that results herein differ by less than 5% in relation to published results. Further simulations comparing the effectiveness of the porous material used showed that no advantages are obtained when using low porosity baffles in the laminar flow regime here investigated.

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PRT-28 pages

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