Heat transfer of confined circular jet impingement

Experiments for heat transfer characteristics of confined circular single j et impingement were conducted. Tire effect of jet Reynolds number, jet hole -to-plate spacing and heat flux levels on heat transfer characteristics of the heated target surface was examined and presented. The local heat transf er coefficient along the surface is measured and correlations of the stagna tion point, local and average Nusselt number are developed and discussed. F inally, comparisons of the present data with existing results were also mad e.