Numerical investigation of modified fin shapes for the improved heat transfer. (2022) - Lal Rinawa, Moti
Abstract: An examination of fin surfaces with various shapes was performed in this work to determine the most efficient heat transfer rate. Models, investigations, and studies have been conducted on the geometry of fin surfaces, namely normal fins with rectangular cross section (R-Fin), fins with multiple steps (S-Fin), and multiple step fins with dimples (D-Fin). Fin surfaces with higher surface area have improved heat transmission, as determined by conceptual and numerical investigation. According to numerical data, dimpled fins improve the surface region and heat transmission of the fins. The dimples had been constructed with changing diameters to fit the fins, which are 5 mm, 4 mm, and 3 mm in diameter, and have been evaluated using a static computational approach. The purpose of this study is to demonstrate the construction, evaluation, and outcome of several fin shapes with constant input boundary conditions. The spherical grooves with various diameters were found to be more successful than the other fins, and creating notches increased heat transmission far more than augmenting the size of the stepped fin's depression.