Convective Heat Transfer in Impinging- Gas- Jet Arrangements


von Karman Institute for Fluid Dynamics, Chaussée de Waterloo 72, Rhode- Saint- Genèse, B- 1640, Belgium


The paper deals with heat transfer by convection between impinging gas jets and solid surfaces. It considers both single and multiple jet systems. It emphasizes the flow and geometrical parameters as well as the environment conditions at which the jet emerges. In particular, it points out the effect of the jet tilting, thermal entrainment and jet confinement. ASN and ARN schemes are illustrated through industrial and aeronautical applications. Design correlations are proposed. Experimental data obtained from infrared thermography are compared to CFD simulations.