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Separation zone in fluctuating flow past an obstacle in a channel |
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| Authors: | I. A. Davletshin N. I. Mikheev |
| Affiliation: | (1) Department of Mechanical and Industrial Engineering, Concordia University, Montreal, QC, Canada, H3G 1M8;(2) Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON, Canada, N6A 5B9;(3) Present address: Department of Mechanical Engineering, N.E.D. University of Engineering and Technology, Karachi, Pakistan; |
| Abstract: | The results of an experimental investigation of hydrodynamic processes in separated turbulent flows in the presence of superimposed flow-rate fluctuations are presented. A sharp shortening of the separation zone in the fluctuating flow is found to exist in the vicinity of Sh = 1. The dependence of the separation zone length on the superimposed fluctuation frequency is the same in the cases in which the obstacle is located in the regions of antinodes of both the flow velocity and the pressure. |
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