Calculation of longitudinal velocity pulsations on a plate

An approach to the description of longitudinal velocity pulsations in a boundary layer is proposed which employs second-moment equations, with the mixing length determined from experimental data. The use of turbulence scale in this form makes it possible to obtain better agreement with experimental data than in the case where the mixing length is used for determining turbulent visosity. Calculation results show that the pulsation maximum and its position in the boundary layer depend on the Reynolds number, which is consistent with the available experimental data. The effect of the constants of the second-moment equation on the solution is examined.