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The results are reported of a preliminary flow-visualization experiment on the characteristics of two-dimensional wakes of a circular cylinder moving in stratified fluids in the horizontal direction. ...To summarize the resuits: 1) The development of vortex wakes behind a circular cylinder is suppressed by the stable stratification of ambient fluids. 2) The vortex streets developed initially evolve into a pair of standing vortices as the cylinder moves at critical values of a stratification parameter k for vortex shedding. 3) The formation of internal lee waves dominates the cylinder wakes at low Reynolds numbers.続きを見る
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1. Introduction 2. Experimental methods 3. Results and discussion
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