Oscillatory Phenomena Of A Turbulent Plane Jet Flowing Inside A Rectangular Cavity
Author(s)
A. Mataoui, R. Schiestel & A. Salem
Abstract
In this study, the oscillation of a turbulent plane jet flowing inside a rectangular cavity is investigated under some conditions of the location of the exit of the jet in the cavity. The experimental study is made essentially by hot wire anemometer and supplemented by visualizations. The numerical study is based on two statistical models of the turbulence: the mono-scale energy – dissipation (K - E) and the two-scales energy - flux-models. Three types of flow regimes have been observed for different positions of the jet inside the cavity: no-oscillation regime, stable-oscillation regime and unstable-oscillation regime. The structural properties of the flow and the frequency of the flapping of the jet of the stable-oscillation flow regime have been detailed experimentally and numerically in different situations: the location of the exit of the jet in the cavity and the Reynolds number.
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