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Turbulent Heat Transfer in Channels With Solid and Porous Baffles

[+] Author Affiliations
Marcelo J. S. de Lemos, Nicolau B. Santos

Instituto Tecnológico de Aeronáutica - ITA

Paper No. IMECE2005-81505, pp. 609-614; 6 pages
doi:10.1115/IMECE2005-81505
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part A
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4221-5 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

Simulations are presented for turbulent flow in a channel containing 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. Further simulations comparing the effectiveness of the porous material used showed that no advantages are obtained when using low porosity baffles in the turbulent flow regime.

Copyright © 2005 by ASME

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