Investigation of a re-entrant jet reflection at an inclined cavity closure line |
| |
| Institution: | 1. State Key Lab of Water Resources and Hydropower Engineering Science, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China;2. Key Lab of Jet Theory and New Technology of Hubei Province, Wuhan University, Wuhan 430072, China;3. Department of Mechanical Engineering, College of Engineering, University of Idaho, Moscow, Idaho 83844, United States;1. State Key Lab of Water Resources and Hydropower Engineering Science, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China;2. Hubei Key Laboratory of Waterjet Theory and New Technology, Wuhan 430072, China;3. National Key Lab on Ship Vibration and Noise, China Ship Scientific Research Center, Wuxi 214082, China;4. Ecole Polytechnique Federale de Lausanne (EPFL), Laboratory for Hydraulic Machines, Lausanne, Switzerland |
| |
| Abstract: | Cavitation on two-dimensional hydrofoils with swept leading edges always displays some 3-dimensional effects. It is well known that the cavity closure on such hydrofoil is not perpendicular to the channel walls, but is curved in a distinctive pattern. The cavitation pocket is longer in the region where the hydrofoil is the shortest. Also the dynamics of cavitation is very distinctive. In the region where the hydrofoil is the longest attached and steady cavitation with no cloud separation exists. On the other side, where the hydrofoil is the shortest, cavitation cloud separations occur.Different explanations for this pattern were proposed in the past but they have not jet been clearly confirmed neither experimentally nor by numerical simulation.In the present paper a clear explanation supported by the numerical simulation and also by experimental measurements, is given. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
