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

Michael P. Kinzel; Michael H. Krane; Ivan N. Kirschner; Michael J. Moeny

doi:10.1016/j.oceaneng.2017.03.042

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

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

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59 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	304-313
Number of pages	10
Journal	Ocean Engineering
Volume	136
DOIs	https://doi.org/10.1016/j.oceaneng.2017.03.042
State	Published - 2017

All Science Journal Classification (ASJC) codes

Environmental Engineering
Ocean Engineering

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10.1016/j.oceaneng.2017.03.042

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title = "A numerical assessment of the interaction of a supercavitating flow with a gas jet",

abstract = "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.",

author = "Kinzel, {Michael P.} and Krane, {Michael H.} and Kirschner, {Ivan N.} and Moeny, {Michael J.}",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors",

year = "2017",

doi = "10.1016/j.oceaneng.2017.03.042",

language = "English (US)",

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journal = "Ocean Engineering",

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AU - Kinzel, Michael P.

AU - Krane, Michael H.

AU - Kirschner, Ivan N.

AU - Moeny, Michael J.

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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VL - 136

SP - 304

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JO - Ocean Engineering

JF - Ocean Engineering

ER -

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

Abstract

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