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| Numerical simulation of the shape stability of ventilated supercavity |
| Received:December 04, 2007 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20101013 |
| KeyWord:ventilated supercavity shape stability the principle of Logvinovich of the cavity sections expansion unsteady numerical simulation |
| Author | Institution |
| 张学伟 |
哈尔滨工程大学深海工程技术研究中心,哈尔滨 |
| 张亮 |
哈尔滨工程大学深海工程技术研究中心,哈尔滨 |
| 于开平 |
哈尔滨工业大学 航天学院,哈尔滨 |
| 张嘉钟 |
哈尔滨工业大学 航天学院,哈尔滨 |
| 魏英杰 |
哈尔滨工业大学 航天学院,哈尔滨 |
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| Abstract: |
| A numerical method was brought forward to calculate unsteady ventilated supercavity based on the principle of Logvinovich of the cavity sections expansion. The shape stability of unsteady ventilated supercavity was simulated by this method. The results indicated that model velocity, gas elasticity, air-supply rate, air-leakage rate, flows pressure, model dimensions and cavitator drag coefficience can all influent the shape stability, the effects were different when the types and modes of disturbances were different. Shape fluctuation and time lag were the main characters of unsteady ventilated supercavity. |
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