Bluff Body Impact on Harvested Heat Transfer from Heated Plate

Abstract

Thermal energy management and developing a reliable heat transfer system are a major concern for engineering societies. The present work aimed to investigate numerically (by using ANSYS Fluent 19.) heat transfer behavior of conventional used bluff bodies on hot plate. The study made accredited change in geometry (circular, square and triangular bluff bodies). The study covered Reynolds number range (2600<Re<9000) based on the plate characteristic length, and various separation distance between the hot plate and bluff body. The Nusselt number is taken as an indicator of heat transfer interaction due to the previous parameter change. While best temperature performance was achieved for circular, square and triangular bluffs at second hot plate location (P2) was T= 326K and T=329K respectively Finally, Nusselt number enhancement achieved by this technique according to the base case (without bluff body) was 178%, 175% and 165.2% for triangular, square, and circular bluff body, respectively.