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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Numerical Simulation on Acceleration Characteristics of a Supersonic Free Jet through a Plasmajet
Author(s)
Yuka Arai1, Yusuke Mizuno1, Yu Sumoto2, Shun Takahashi3, Kota Fukuda1 and Hideyuki Horisawa1
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DOI:10.17265/2159-5275/2019.03.001
Affiliation(s)
1. The Department of Aeronautics and Astronautics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
2. Nippon Pneumatic MFG. Co., LTD., Nabari, Mie 518-0605, Japan
3. The Department of Prime Mover Engineering, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
ABSTRACT
In this study,
numerical simulation on acceleration characteristics of a supersonic free jet
through utilization of a plasmajet was conducted, where the supersonic free jet
was accelerated through an interaction in a shear layer between the free jet
and plasmajet. In this analysis, the governing equations including two-dimensional compressible Reynolds-averaged Navier-Stokes
equations (RANS) were calculated with a commercial code, ANSYS Fluent v.14.5.
As for the turbulence model, a k-εrealizable turbulence model was employed. In
this paper, when a plasma flow is used for the center nozzle, the
velocity is higher especially in potential core part than in the case of
unheated flow because of a hot core flow of the plasmajet.
KEYWORDS
Numerical algorithms, computational fluid dynamics, turbulence modeling, aeroacoustics.
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