Abstract
SummaryResults of an experimental investigation of the distribution of skin friction along the wall of a plane turbulent wall jet are presented. The measurements show that it is possible to describe the variation of skin friction coefficient by a formula similar to the Blasius formula which is based on experimental results of turbulent pipe flow. This is simply achieved by considering the inner layer of fluid between the wall and the position where the velocity is a maximum as a boundary layer with an outer uniform free stream of velocity equal to the local maximum velocity.Other measurements of velocity distribution indicate that within the experimental range and accuracy, the velocity profiles in the jet are similar and that the rate of change of velocity and width of the jet can be expressed by simple power laws. These results are then partially compared with theory.
Publisher
Cambridge University Press (CUP)
Reference8 articles.
1. Förthmann E. (1934). Über turbulente Strahlausbreitung. Ingenieur-Archiv, 5, 42, also N.A.C.A. T.M. 789, 1934.
2. Zerbe J. and Selna J. (1946). An Empirical Equation for the Coefficient of Heat Transfer to a Flat Surface from a plane Heated-air Jet directed Tangentially to the Surface. N.A.C.A. T.N. 1070, 1946.
3. The wall jet
4. An experimental investigation of a wall jet
Cited by
72 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献