International Journal of Heat and Mass Transfer, Vol.40, No.1, 141-147, 1997
Numerical Investigation of Heat-Transfer in Impinging Axial and Radial Jets with Superimposed Swirl
The effect of swirl on heat transfer by axial and radial laminar jets impinging on a flat plate has been investigated numerically through the solution of Navier-Stokes and energy equations. Heat transfer is reduced substantially by the superposition of swirl on axial jets. Significant enhancement in heat transfer has been observed in the case of a radial jet with superimposed swirl on it. For a swirl number of unity,the heat transfer is enhanced by 77%.