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  Journal Paper


Paper Title :
Characteristics of Supersonic Water Jet in Sea Water

Author :Anirut Matthujak, Chakrit Po-Ngam, Chaidet Kasamnimitporn

Article Citation :Anirut Matthujak ,Chakrit Po-Ngam ,Chaidet Kasamnimitporn , (2017 ) " Characteristics of Supersonic Water Jet in Sea Water " , International Journal of Mechanical and Production Engineering (IJMPE) , pp. 80-84, Volume-5,Issue-8

Abstract : The characteristics of supersonic water jet injected in sea water is preliminarily described in this research. The main focus is to compare the dynamic behaviors of the jet injected in sea water, water and ambient air. The supersonic water jets were generated by impact driven method in a horizontal single-stage power gun being designed and constructed for this study. The jets were visualized by the shadowgraph technique, and the images were recorded by a high-speed digital video camera. From the shadowgraph images, the core jet, water vapor bubble, shock wave in sea water and rebound shock wave generated because of bubble collapse is obviously observed. The maximum averaged velocity of the jet injected in sea water, water and air were 266.80 m/s, 374.24 m/s and 1,669.03 m/s, respectively. The averaged velocity of jet injected in sea water is much slower than that in air because hydrodynamic drag is much higher than aerodynamic drag. Since the density of sea water is higher than that of water, the averaged velocity of jet injected in sea water is lower than that in water. These effect on the penetration distance of jet injected in sea water being shorter than that in water and air, respectively. Index Terms - Supersonic water jet, Sea water, Shock wave, Shadowgraph technique.

Type : Research paper

Published : Volume-5,Issue-8


DOIONLINE NO - IJMPE-IRAJ-DOIONLNE-8983   View Here

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