Journal of Heat Transfer

Volume: Page/CID:

Analysis of Bioheat Transport Through a Dual Layer Biological Media
A comprehensive analysis of bioheat transport through a double layer and multilayer biological media is presented in this work. Analytical solutions have been developed for blood and tissue phase temp...

Pool Boiling Heat Transfer of Water on Finned Surfaces at Near Vacuum Pressures
This research paper presents a study of boiling heat transfer from longitudinal rectangular-finned surfaces immersed in saturated water at low vapor pressures. Finned surfaces with assorted fin spacin...

J. Heat Transfer / Volume 132 / Issue 3 / Research Papers / Conduction

Thermal Analysis and Optimization of Orthotropic Pin Fins: A Closed-Form Analytical Solution

J. Heat Transfer -- March 2010 -- Volume 132, Issue 3, 031301 (8 pages)
doi:10.1115/1.4000059

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ABSTRACT

REFERENCES (20)

CITING ARTICLES

Author(s):
Syed M. Zubair and A. F. M. Arif
Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia

Mostafa H. Sharqawy
Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139

Analyticalsolutions for temperature distribution, heat transfer rate, and fin efficiencyand fin effectiveness are derived and presented for orthotropic two-dimensionalpin fins subject to convective-tip boundary condition. The generalized resultsare presented and discussed in terms of dimensionless variables suchas radial and axial Biot numbers (Bi_r,Bi_z), fin aspect ratio,L/R, and radial-to-axial conductivity ratio k^*. Several special cases arederived from the general solution, which includes the insulated-tip boundarycondition. It is also demonstrated that the classical temperature distributionand heat transfer rate from the two-dimensional isotropic pin finintroduced earlier in literature can easily be recovered from thegeneral solutions presented in this paper. Furthermore, dimensionless optimization resultsare presented for orthotropic pin fins that can help tosolve many natural and forced convection pin fin problems.