A CFD Study of a rectangular fin having different geometry exposed to natural convection
Aditya Kumar ; Sudip Chakraborty ;
The purpose of the paper is to investigate the heat transfer from a longitudinal fin by varying geometrical configurations. In this problem, heat from the base wall which is made of mild steel, is transferred through conduction and conducted heat is interacting with atmosphere through natural convection by the extended surface to enhance the heat transfer rate. Two different profiles are chosen for the study namely rectangular profile with single step change (RFSSC) and rectangular profile with double step change (RFDSC). Convective heat transfers, End-tip temperatures and Effectiveness are calculated for the chosen profiles and compared with the orthodox CRF profile. The best profile based on the application is identified to increase heat transfer is shown in this paper. ANSYS 19.0 is used to design the different configurations and to carry out the simulation to get the results. The simulated data have been verified analytically using Finite Difference Method and the equations are solved in MATLAB to get the desired data to be compared with fluent data. Few exhortations have been made about the possible application areas of the identified profiles.