Numerical study of flow structures of underwater supersonic jets

Jana, A. and M S, Mahesh (2021) Numerical study of flow structures of underwater supersonic jets. In: AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021, 11 January 2021through 15 January 2021, Virtual, Online.

Full text not available from this repository. (Request a copy)


Underwater supersonic gas jets are widely utilized in submerged propulsion systems such as missiles launched from submarines. Unlike the single phase supersonic jets (gas jet in air), supersonic jets which are submerged underwater can give rise to high pressure pulses moving back into the nozzle assembly. This study is focused on the numerical simulation of the initial transients of underwater supersonic air jets. The results from the numerical simulations are used to visualize the oscillation of pressure, Mach number and jet interface under varying operating parameters to envisage the physics of the flow field. Several aspects of the submerged jets are compared with those of the single phase jets to understand the major differences in the multiphase environment. Subsequently, the submerged jet will be studied more elaborately under varying operating parameters. Thereby, this work attempts to investigate and understand the different physical aspects of the development of the flow structure of a supersonic jet submerged in water. © 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Air jet; Gas jet; High pressure; Operating parameters; Pressure pulse; Propulsion system; Single phasis; Submerged jets; Supersonic gas jet; Supersonic jets
Subjects: Physics > Mechanical and aerospace
Divisions: Department of Mechanical & Aerospace Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 10 Sep 2022 11:21
Last Modified: 10 Sep 2022 11:21
Publisher URL:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 10531 Statistics for this ePrint Item