Analysis of flux-base fins for estimation of heat transfer coefficient

K. D. Cole, C. Tarawneh, B. Wilson

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Exact solutions are given for the transient temperature in flux-base fins with the method of Green's functions (GF) in the form of infinite series for three different tip conditions. The speed of convergence is improved by replacing the steady part by a closed-form steady solution. For the insulated-tip case, a quasi-steady solution is presented. Numerical values are presented and the conditions under which the quasi-steady solution is accurate are determined. An experimental example is given for estimation of the heat transfer coefficient (HTC) on a non-rotating roller bearing, in which the outer bearing race is treated as a transient fin.

Original languageEnglish (US)
Pages (from-to)92-99
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume52
Issue number1-2
DOIs
StatePublished - Jan 15 2009

Keywords

  • Extended surface
  • Heat transfer coefficient
  • Neumann boundary
  • Parameter estimation
  • Transient conduction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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