Journal
PHYSICA SCRIPTA
Volume 96, Issue 12, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1402-4896/ac1e5d
Keywords
natural convection; fully wet fin; trapezoidal profile; inclined porous fin; heat generation
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Funding
- Department of Science and Technology, Government of India under DST-FIST programme [SR/FST/MS-I/2018/23(C)]
- University Grants Commission, New Delhi, India [191620111468)/(CSIR-UGC NET DEC. 2019)]
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The study investigated the thermal behavior of trapezoidal and dovetail profiled longitudinal fin structures on an inclined surface, with results showing that the fin profile and internal heat generation have the greatest impact on heat transfer rate.
The trapezoidal and dovetail profiled longitudinal fin structures exposed to a convective-radiative environment and mounted on an inclined surface have been considered for the analysis. The fin structures have been assumed to be porous and fully wet in nature. The Darcy model has been implemented to simulate the fluid-solid interactions. Further, the convective and radiative heat transfer coefficients have been taken to be temperature-dependent. The resulting equation has been reduced by introducing the non-dimensional quantities and then solved by employing the Runge-Kutta Fehlberg 4th-5th order method along with the shooting technique. The effect of tip tapering, angle of inclination, fully wet nature, porosity, internal heat generation, and other pertinent parameters on the fin thermal profile and fin heat transfer rate has been presented graphically and discussed. It has been inferred that the dovetail fin profile achieves the highest heat transfer rate followed by rectangular and trapezoidal fin profiles provided the internal heat generation is minimal. The present work is significant for fin design purposes and also acts as a verification tool for future research.
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