Experimental study of heat transfer of impinging swirling jets and jets with chevrons

Abstract The aim of this work is to study the effect different forms passive change in shape flow on intensity heat transfer impact jet. In work, a cycle experiments was performed investigate an axisymmetric jet flowing normally onto heated surface. located both natural conditions and during swirling (S = 0.4; 0.7; 1.0). It shown that target case chevrons has little character, but significantly intensifies transfer. jet, distribution wall changes its character locally increases at small distances between nozzle heater.