4.8 Article

The turbulent wall jet: A triple-layered structure and incomplete similarity

Publisher

NATL ACAD SCIENCES
DOI: 10.1073/pnas.0503186102

Keywords

turbulence; turbulent jets; scaling; power law

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We demonstrate using the high-quality experimental data that turbulent wall jet flows consist of two self-similar layers: a top layer and a wall layer, separated by a mixing layer where the velocity is close to maximum. The top and wall layers are significantly different from each other, and both exhibit incomplete similarity, i.e., a strong influence of the width of the slot that had previously been neglected.

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