Abstract
The Reynolds stress distributions and evolution of production terms in the vorticity transport equation have been investigated experimentally in a stronger wall jet managed with an embedded streamwise vortex. In the present three-dimensional flow field, the mean velocity gradient ∂U/∂y and ∂U/∂z have still primary importance to quantitative feature, such as the maximum and minimum, of the Reynolds shear stresses -uv- and -uw-, respectively. A possible explanation by means of spanwise oscillation of the streamwise vortex is proposed for non-isotropy of the Reynolds stresses. The non-isotropic and non-uniform distributions of the Reynolds stresses play a dominant role on the decay of the streamwise vortex. Comparisons with results in turbulent boundary layers are made in terms of the non-isotropy of the Reynolds stresses and asymmetry in spatial distributions of -uv- and -uw-.
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