|
| Numerical method of supercaviting flow past a slender cone type projectile traveling in water at subsonic speed |
| Received:October 07, 2010 Revised:March 01, 2011 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20123017 |
| KeyWord:fluid mechanics slender body theory supercavity compressibility projectile |
| Author | Institution |
| 金永刚 |
海军工程大学 理学院, 武汉 |
| 张志宏 |
海军工程大学 理学院, 武汉 |
| 王冲 |
海军工程大学 理学院, 武汉 |
| 孟庆昌 |
海军工程大学 理学院, 武汉 |
| 顾建农 |
海军工程大学 理学院, 武汉 |
|
| Hits: 2101 |
| Download times: 1505 |
| Abstract: |
| On the assumption that the ideal compressible fluid motion is irrotational and steady,supercavitating closure with the Riabushinsky scheme.An integro-differential equation for the supercavitating flow past a slender cone type projectile traveling in water at subsonic speed is derived based on the potential flow theory of hydrodynamics and the slender body theory.A numerical discrete method for solution of the integro-differential equation is developed,various initial solutions of supercavity profile are proposed and the influence on results are analyzed.The process of computation is optimized and the initial cavity solution for the first iteration is simplified.Compressibility influence of flow field on characteristic parameter of supercaviting flow is analyzed,while the Mach number exceeds 0.3,more remarkable increasement of supercavity shape and pressure coefficient on projectile surface and drag coefficient of projectile will occur.The calculated results about characteristic parameter of supercaviting flow are compared with relative theoretical and experimental ones,and a good agreement exists. |
|
|
|