An Experimental Investigation of Artificial Supercavitation

10 Pages Posted: 31 May 2018

See all articles by B.K. Ahn

B.K. Ahn

Chungnam National University

S.W. Jeong

Chungnam National University

J.H. Kim

Chungnam National University

S. Shao

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Ashish Karn

University of Petroleum and Energy Studies, Dehradun

Jiarong Hong

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

R.E.A. Arndt

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Date Written: September 13, 2016

Abstract

In this paper, we investigated physical characteristics of an artificial supercavity generated behind an axisymmetric cavitator. Experiments for the same model were carried out at two different cavitation tunnels of the Chungnam National University and the University of Minnesota, and the results were compared and verified with each other. We measured pressures inside the cavity and observed the cavity formation by using a high-speed camera. Cavitation parameters were evaluated in considering blockage effects of the tunnel, and gravitational effects on supercavity dimensions were examined. Cavity dimensions corresponding to the unbounded cavitation number were compared. Hysteresis effects appearing in both experiments were also investigated.

Keywords: Artificial supercavitation, closure, blockage, hysteresis

Suggested Citation

Ahn, B.K. and Jeong, S.W. and Kim, J.H. and Shao, S. and Karn, Ashish and Hong, Jiarong and Arndt, R.E.A., An Experimental Investigation of Artificial Supercavitation (September 13, 2016). Available at SSRN: https://ssrn.com/abstract=3173467 or http://dx.doi.org/10.2139/ssrn.3173467

B.K. Ahn (Contact Author)

Chungnam National University ( email )

Daejon, 34134
Korea, Republic of (South Korea)

S.W. Jeong

Chungnam National University ( email )

Daejon, 34134
Korea, Republic of (South Korea)

J.H. Kim

Chungnam National University ( email )

Daejon, 34134
Korea, Republic of (South Korea)

S. Shao

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Minneapolis, MN
United States

Ashish Karn

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

Jiarong Hong

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

Minneapolis, MN
United States

R.E.A. Arndt

University of Minnesota - Minneapolis - St. Anthony Falls Laboratory

Minneapolis, MN
United States

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