Heat transfer characteristics of plane steady and forced impinging jets on a convex surface

This report presents my M.Sc. thesis project on heat transfer characteristics of plane steady and forced impinging jets on a convex surface when they are unforced and when they are subjected to forcing. The literature review conducted so far is presented. Experimental and numerical works performed on impinging jets are reviewed with emphasis on plane impinging jets on curved target surfaces. The experimental study of Chan et al. (2002) and hence the flow and geometrical configuration are chosen as a benchmark test case.;The methodology adopted to calculate such flow using both Large Eddy Simulation (LES) and Reynolds Averaged Navier-Stokes (RANS) equations solvers based on pressure is presented. The approach for both unforced and forced jets is presented and the advantages and disadvantages of the turbulence models are highlighted.;A series of different frequencies were used for the forced 2-D RANS calculation, the critical frequency for an impinging jet was defined and figured out for the 3-D LES calculation. The influence of the frequencies on the heat transfer rate or Nusselt number of a forced impinging jet was conducted, several animations of the velocity vector, vorticity contours, pressure, and temperature were created to help understanding the flow structure and the heat transfer better.