ISSN Online: 2377-424X
ISBN Print: 0-89116-559-2
International Heat Transfer Conference 8
SKIN FRICTION AND HEAT TRANSFER IN TURBULENT FLOWS OVER ROUGH WALLS WITH BLOWING
Résumé
The computations of turbulent boundary layers over rough walls with and without transpiration are classified into finite defference methods and integral methods. Integral methods are simple, reliable and fast and are often preferred for design purposes. In this paper the roughness effects are taken into account in the integral method by using the relative skin friction correlation on a rough porous walls with transpiration. The predictions of skin friction coefficients, Stanton number and film
cooling effectiveness are evaluated by comparisons with data of the experiments and computations.