Isothermal and heated subsonic jet noise using large eddy simulations on unstructured grids

2018 ◽  
Vol 171 ◽  
pp. 166-192 ◽  
Author(s):  
M. Zhu ◽  
C. Pérez Arroyo ◽  
A. Fosso Pouangué ◽  
M. Sanjosé ◽  
S. Moreau
Keyword(s):  
Unstructured Grids ◽  
Jet Noise ◽  
Large Eddy Simulations ◽  
Large Eddy ◽  
Subsonic Jet

scholarly journals Nozzles, turbulence, and jet noise prediction

2018 ◽  
Vol 860 ◽  
pp. 1-4 ◽  
Author(s):  
Jonathan B. Freund
Keyword(s):  
Prediction Accuracy ◽  
Jet Noise ◽  
Sound Field ◽  
Field Measurements ◽  
Detailed Comparison ◽  
Large Eddy Simulations ◽  
Noise Prediction ◽  
Large Eddy ◽  
Modelling Procedure ◽  
Flow Turbulence

Jet noise prediction is notoriously challenging because only subtle features of the flow turbulence radiate sound. The article by Brès et al. (J. Fluid Mech., vol. 851, 2018, pp. 83–124) shows that a well-constructed modelling procedure for the nozzle turbulence can provide unprecedented sub-dB prediction accuracy with modest-scale large-eddy simulations, as confirmed by detailed comparison with turbulence and sound-field measurements. This both illuminates the essential mechanisms of the flow and facilitates prediction for engineering design.

On the large-eddy simulations for the flow around aerodynamic profiles using unstructured grids

2013 ◽  
Vol 84 ◽  
pp. 176-189 ◽  
Author(s):  
O. Lehmkuhl ◽  
I. Rodríguez ◽  
A. Baez ◽  
A. Oliva ◽  
C.D. Pérez-Segarra
Keyword(s):  
Unstructured Grids ◽  
Large Eddy Simulations ◽  
Large Eddy

Large-Eddy-Simulations of over-expanded supersonic jet noise for launcher applications

2011 ◽  
Vol 130 (4) ◽  
pp. 2511-2511 ◽  
Author(s):  
Jean-Baptiste Dargaud ◽  
Julien Troyes ◽  
François Vuillot
Keyword(s):  
Supersonic Jet ◽  
Jet Noise ◽  
Large Eddy Simulations ◽  
Supersonic Jet Noise ◽  
Large Eddy
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