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Analysis of Transient Conjugate Heat Transfer From a Hemispherical Plate During Liquid Jet Impingement

[+] Author Affiliations
Muhammad M. Rahman, Cesar F. Hernandez

University of South Florida, Tampa, FL

Paper No. IHTC14-23318, pp. 727-736; 10 pages
doi:10.1115/IHTC14-23318
From:
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 5
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4940-8 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME

abstract

Transient heating of a hemispherical solid plate of finite thickness during impingement of a free liquid jet is studied. A constant heat flux is imposed at the inner surface of the hemispherical plate at t = 0 and heat transfer is monitored for the entire duration of the transient until a steady state condition is reached. Calculations are done for Re = 500–1500 and b/dn = 0.083–1.5 using water (H2 O) as the coolant and various solid materials such as silicon, Constantan, and copper. It was found that the time for the plate to achieve the steady-state condition decreases and Nusselt number increases with Reynolds number. A plate material with higher thickness provides higher average Nusselt number and longer transient period.

Copyright © 2010 by ASME
Topics: Heat transfer

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