Corrections Based on Two-Dimensional Fin Analysis of Tip Conditions
The errors based on a two-dimensional analysis of a straight rectangular and of an annular fin of uniform thickness were studied. The error in the tip temperature is very large for large Biot number. The two-dimensional heat transfer correction is very large for small Biot number, whereas the temperature correction is not. The results indicate that a one-dimensional assumption is highly justified for low Biot number of up to 0.2 in terms of the heat transfer from the fin.
D. C. Look and A. Krishnan, "Corrections Based on Two-Dimensional Fin Analysis of Tip Conditions," Journal of Thermophysics and Heat Transfer, American Institute of Aeronautics and Astronautics (AIAA), Jan 2005.
The definitive version is available at http://dx.doi.org/10.2514/1.11456
Mechanical and Aerospace Engineering
Keywords and Phrases
Biot Number; Fin Analysis; Fin Tips; Heat Loss Correction
Article - Journal
© 2005 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.