G.V.Kovalenko, A.A.Khalatov Boundaries of flow regimes in caves on flat surface having a form of spherical segments |
Applied hydromechanics, Vol. 10 (82) ¹ 1, (2008) |
| The flow regime borders were identified for single dimples on a flat plate, made in a form of spherical segments according to experiment results. The diffuser-confuser flow, horseshoe vortex regime and columnar vortex regime were considered. Neither horseshoe vortex nor columnar vortexes were observed in the dimples with a relative depth less than 0.1. The transitions from the regime of diffuser--confuser flow to the horseshoe vortex regime as well as the transitions from horseshoe vortex regime to the columnar vortex regime depend not only on Reynolds number but on relative depth of the spherical segment. The functional dependences for determination of flow regime borders and coordinates for generalization of results were proposed. |
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| TEXT LANGUAGE: Russian |