Spectral Model Predictions of Mean-Square-Shear Distortion Rates

摘要

It is possible to use a simple shear spectral model to produce some estimates of the mean-square velocity difference over given values of delta z. The distortion of a fluid region (a wake cross section, say) of dimension L is clearly due to velocity differences over delta z equal to L and smaller. In this note we explore the behavior of velocity differences over delta z with a simple model for the shear spectral density function. (Author)