Probing into Physics of Ventilation Demand for Supercavitating Underwater Vehicles

11 Pages Posted: 19 May 2018 Last revised: 22 May 2018

See all articles by Ashish Karn

Ashish Karn

University of Petroleum and Energy Studies, Dehradun

R. Huang

Tsinghua University - Department of Thermal Engineering

S. Shao

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

R.E.A. Arndt

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Jiarong Hong

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Date Written: September 14, 2016

Abstract

Ventilated supercavitation is a promising approach to achieve significant reduction of drag for high speed underwater transportation. The ventilation demand required for the formation and sustenance of the supercavity under different flow conditions is one of the key questions in the design of underwater vehicles based on ventilated supercavitation, which can be strongly affected by physical phenomena related to liquid gas interactions including, particularly, the closure mechanism of a supercavity. Despite extensive research on ventilated supercavitation, there is still no general consensus on the ventilation demand and the criteria governing closure mechanisms. This paper summarizes a series of our recent studies on ventilated supercavitation, focusing on providing physical insights into the closure mechanism of a supercavity and its connection with the ventilation requirement for the formation and sustenance of supercavitation.

Keywords: ventilated supercavitation, closure mechanism, supercavity formation

Suggested Citation

Karn, Ashish and Huang, R. and Shao, S. and Arndt, R.E.A. and Hong, Jiarong, Probing into Physics of Ventilation Demand for Supercavitating Underwater Vehicles (September 14, 2016). Available at SSRN: https://ssrn.com/abstract=3173466 or http://dx.doi.org/10.2139/ssrn.3173466

Ashish Karn (Contact Author)

University of Petroleum and Energy Studies, Dehradun ( email )

Energy Acres
P.O. Bidholi via Premnagar,
Dehradun, IN Uttarakhand 248007
India

HOME PAGE: http://umn.edu/~karn

R. Huang

Tsinghua University - Department of Thermal Engineering

Beijing
China

S. Shao

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Minneapolis, MN
United States

R.E.A. Arndt

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Minneapolis, MN
United States

Jiarong Hong

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory ( email )

Minneapolis, MN
United States

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