Abstract We present a detailed evaluation of the turbulence forecast product EDP (Eddy Dissipation Parameter) used at Deutscher Wetterdienst (DWD). It is based on parameterization scheme TURBDIFF which operational within ICON (Icosahedral Nonhydrostatic) numerical weather prediction model operationally by DWD. For aviation purposes, procedure provides cubic root eddy dissipation rate ε 1/3 as a...

A one-dimensional model has recently been developed for the analysis of nonlinear standing waves in an acoustical resonator. This model is modified to include energy losses in the boundary layer along the resonator wall. An investigation of the influence of the boundary layer on the acoustical field in the resonator and on the energy dissipation in the resonator is conducted. The effect of the ...

Planar straining and destraining of turbulence is an idealized form of turbulencemeanflow interaction that is representative of many complex engineering applications. This paper studies experimentally the response of turbulence subjected to a process involving planar straining, a brief relaxation and destraining. Subsequent analysis quantifies the impact of the applied distortions on model coef...