Large-Eddy Simulations of Perfectly Expanded Supersonic Jets Using an Unstructured Solver

Large-eddy simulations of supersonic jets are performed to validate the development of a second-order finite volume unstructured solver for aeroacoustic applications. Two supersonic jets issuing from an axisymmetric nozzle at Mach number 1.4 are computed: one unheated jet with a Reynolds number of 1...

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Bibliographic Details
Published in:AIAA journal 2012-05, Vol.50 (5), p.1103-1118
Main Authors: Mendez, S, Shoeybi, M, Sharma, A, Ham, F. E, Lele, S. K, Moin, P
Format: Article
Language:English
Subjects:
Acoustics
Aeroacoustics, atmospheric sound
Exact sciences and technology
Fluid dynamics
Fluid flow
Fundamental areas of phenomenology (including applications)
Integration
Jets
Large eddy simulation
Mathematical analysis
Noise (turbulence generated)
Nozzles
Physics
Reynolds number
Simulation
Solvers
Supersonic aircraft
Temperature
Turbulence simulation and modeling
Turbulent flows, convection, and heat transfer
Velocity
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Summary:Large-eddy simulations of supersonic jets are performed to validate the development of a second-order finite volume unstructured solver for aeroacoustic applications. Two supersonic jets issuing from an axisymmetric nozzle at Mach number 1.4 are computed: one unheated jet with a Reynolds number of 150,000 and one heated jet with a Reynolds number of 76,000 and a temperature ratio of 1.75. Flow and noise results are compared with the experimental database fromNASAGlenn Research Center. The nozzle is included in the computational domain. The present study shows that the results from the unstructured solver are in good agreement with the experimental data for time-averaged and fluctuating quantities, velocity spectra in the jet, and the sound obtained in the near field and the far field using the integration of the Ffowcs-Williams and Hawkings equation. [PUBLICATION ABSTRACT]
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J051211