CFD Analysis of Cactus and Inverted Trapezoidal Shape Fin Profile for Four-Stroke IC Engine

CFD analysis plays an important role in understanding the workings of the model and getting the best result economically. Nowadays CFD analysis is a powerful tool for engineers. CFD is used in various tasks to get an idea of how it would actually work practically before building any prototype of that model. In this paper, CFD analysis of the fin profile is done for four-stroke IC engine. Here four fin profiles have been considered for analysis. The main objective of this paper is to select the best fin profile which has the highest heat transfer rate among the other three fin profiles. For better results, two new fin profiles have been designed. The calculations and CFD analysis for inverted trapezoidal and cactus-shaped fin profiles have been shown. For model validation, direct results for triangular and rectangular profiles have been shown by comparing the CFD values with experimental values. In Ansys steady-state thermal analysis, observations have been made for cactus-shaped fin profile which has the highest heat transfer rate of 148.800 W per fin among all expansion strokes, and on the other hand, the inverted trapezoidal profile has the highest heat flux of 299.247 × 103 W/m2 among all expansion strokes. The steady-state thermal analysis of the fin is carried out by using aluminium material, which is lighter and economical and has a higher thermal conductivity. For a better heat transfer rate cactus-shaped fin profile can be selected.