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To simulate the effect of free st ream turbulence Abstract on turbulent spot format ion, experiments were conducted on the interaction of localized three-dimensional disturbances with the harmonic waves in a laminar boundary layer on a flat plate. Experiments conducted in three-dimensional diverging flow (but zero pressure gradient) show, while individually the disturbances decay downstream, their interaction leads to amplification of three-dimensional disturbance leading to formation of the turbulent spot. Also flow divergence show the least effect in the interaction process
کلید واژگان :T-S Waves, 3-D Flow, Turbulence Spot, Transitional Boundary Layer
ارزش ریالی : 600000 ریال
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