Large eddy simulation and measurement of the structure of turbulence in two rectangular channels connected by a gap

Theoretical and experimental investigations of the structure of turbulent flow have been performed in a channel consisting of two rectangular channels which are connected by a gap near a wall. Hot-wire experiments showed that very high Reynolds stresses occur close to the gap. Large eddy simulations confirmed the experimental results and showed that large scale streamwise vortices move within the gap along the whole length of the channel.

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