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Analysis of Pulse Heating on a Fluid-Cooled Surface for Fluid Shear Stress

[+] Author Affiliations
Kevin D. Cole

University of Nebraska at Lincoln, Lincoln, NE

Paper No. IMECE2002-39549, pp. 277-284; 8 pages
doi:10.1115/IMECE2002-39549
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 7
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-3638-X | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

This paper is a report of an improved heat transfer model for rapid temperature variations caused by pulse heating of fluid-cooled surfaces, with application to fluid shear-stress measurement. The key improvement is the use of a fully-transient treatment of the heat transfer in the fluid flow as part of a combined convection-conduction model. Surface-temperature results are presented for several fluid/solid combinations for a two-dimensional heater located on the fluid-solid interface. A sensitivity study suggests that pulse heating may be better than steady heating for measurement of fluid shear stress, and that measurements downstream of the heater may also be important.

Copyright © 2002 by ASME

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