A numerical assessment of the interaction of a supercavitating flow with a gas jet

OCEAN ENGINEERING

卷:136

Article

Kinzel, Michael P.¹  Krane, Michael H.¹  Kirschner, Ivan N.²  Moeny, Michael J.¹ 

[1] Penn State Univ, Appl Res Lab, 214 GTWT Blg, University Pk, PA 16802 USA

[2] Appl Phys Sci Corp, Groton, CT USA

关键词: Supercavitation;    Jet;   

DOI  :  10.1016/j.oceaneng.2017.03.042

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free