Abstract
Experimental investigations on heat transfer caused by side-jet injection into hypersonic cross flow were performed. The present paper describes analysis of aerothermodynamic effects of several vortices which are generated in separation region in front of side-jet stream. Measurements of heat transfer distribution with high spatial resolution were conducted by using Temperature Sensitive Paint to reveal the influence of small vortex structure in the separation region. In addition, numerical simulation was performed simultaneously. As a result, surface heat transfer distribution caused by the aerodynamic interaction showed characteristic patterns of heating and they showed good agreement with the prediction by the numerical study.
