国际流体力学研究期刊
每年出版 6 期
ISSN 打印: 2152-5102
ISSN 在线: 2152-5110
IF:
1.1
5-Year IF:
1.3
Eigenfactor:
0.0002
JCI:
0.33
SJR:
0.256
SNIP:
0.49
CiteScore™::
2.4
H-Index:
23
Indexed in
Numerical Simulation of Turbulent Underexpanded Jet
卷 31,
册 1, 2004,
8 pages
DOI: 10.1615/InterJFluidMechRes.v31.i1.30
摘要
The evolution with time and space of hot gas (NOx, CO2, air) in exhaust underexpanded jet is studied by numerical simulations. The jet at the nozzle exit is at Mach number Mj = 1, the ambient flow corresponds to an homogeneous base state environment. This test case is considered to analyze turbulent motion responsible for gas mixing with ambient air. Longitudinal streamwise Taylor−Görtler eddies in mildly underexpanded jet are identified in our flow visualizations. A complete transition to turbulent flow is reached thanks to Monotone Integrated Large Eddy Simulation (MILES) approach. Computed statistics are in good agreement with experimental measurements.
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