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Forced and Mixing Convection Analysis of Discrete Heated Porous Convergent Channel

[+] Author Affiliations
Mohamed G. Ghorab

Alexandria University, Alexandria, Egypt

Paper No. IMECE2014-39266, pp. V08BT10A024; 8 pages
doi:10.1115/IMECE2014-39266
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 8B: Heat Transfer and Thermal Engineering
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4956-9
  • Copyright © 2014 by ASME

abstract

The paper presents a numerical investigation of forced and mixing convection heat transfer and flow analysis of a passive heat exchanger inside clear (non-porous) and partially porous channels at different outlet area. Four discrete heat sources with uniform heat flux are simulated on the bottom wall of the channel. FORTRAN CFD code was developed and used to solve non-dimensional the governing equations for the fluid and porous media using finite volume method. The flow field and thermal analysis inside the channel are investigated across a wide range of Reynolds number (50 ≤ Re ≤ 300), Darcy number (10−2 ≤ Da ≤ 10−6), Richardson number (0 ≤ Ri ≤ 100) for 0.71 Prandtl number. The results show that the heat exchanger with partially porous convergent channel provides superior heat source cooling which leads to develop the macro and microelectronic devices.

Copyright © 2014 by ASME
Topics: Convection

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