A numerical assessment of the interaction of a supercavitating flow with a gas jet
| Autor: | Ivan N. Kirschner, Michael P. Kinzel, Michael Krane, Michael J. Moeny |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Recirculating flow Environmental Engineering business.industry Astrophysics::High Energy Astrophysical Phenomena 020101 civil engineering Numerical assessment Ocean Engineering 02 engineering and technology Mechanics Wake Computational fluid dynamics 01 natural sciences 010305 fluids & plasmas 0201 civil engineering Physics::Fluid Dynamics Jet ventilation Axial compressor Classical mechanics 0103 physical sciences Physics::Accelerator Physics business Leakage (electronics) Supercavitation |
| Zdroj: | Ocean Engineering. 136:304-313 |
| ISSN: | 0029-8018 |
| DOI: | 10.1016/j.oceaneng.2017.03.042 |
| Popis: | In this work, the interaction between a ventilated supercavity and a jet are examined using computational fluid dynamics (CFD). CFD results compare favorably to experimental data describing bulk cavity behavior. These validated models are used to develop a number of novel insights into the physical characteristics of the interaction. These interactions are described by: (1) the jet ventilation gas appears to dominate the gas attached to the cavity shear layer, (2) the jet appears to cause additional gas leakage by transitioning the cavity from a recirculating flow to an axial flow, (3) the jet creates more slender cavities, and (4) with sufficient momentum, the jet invokes wake instabilities that drive cavity pulsation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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