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The Use of Volume Averaging Theory (VAT) for Evaluation of Surface Heat Transfer Augmentation

[+] Author Affiliations
V. K. Tam, M. R. Chang, I. Catton

University of California - Los Angeles, Los Angeles, CA

Paper No. IMECE2008-68194, pp. 1399-1409; 11 pages
doi:10.1115/IMECE2008-68194
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

A model, based on Volume Averaging Theory (VAT), was developed to predict friction and heat transfer over augmented surfaces. The objective is to find augmentation that produces a higher heat removal relative to the increase in pumping power necessary to overcome the additional friction that is generated. This was accomplished with a numerical solution of the VAT transport equations for describing fully developed turbulent flow in a channel with augmented surfaces. Friction factor and Nusselt number results produced by the numerical simulation are compared with experimental data to validate the model and which of the augmented surfaces performs the best is clearly show.

Copyright © 2008 by ASME
Topics: Heat transfer

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