Large eddy simulations of sound radiation from subsonic turbulent jets

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 1469-1477
Author(s):  
W. Zhao ◽  
S. H. Frankel ◽  
L. Mongeau
Keyword(s):  
Sound Radiation ◽  
Turbulent Jets ◽  
Large Eddy Simulations ◽  
Large Eddy

Large Eddy Simulations of Sound Radiation from Subsonic Turbulent Jets

AIAA Journal ◽  
2001 ◽  
Vol 39 (8) ◽  
pp. 1469-1477 ◽  
Author(s):  
W. Zhao ◽  
S. H. Frankel ◽  
L. Mongeau
Keyword(s):  
Sound Radiation ◽  
Turbulent Jets ◽  
Large Eddy Simulations ◽  
Large Eddy

A Tabulated, Flamelet Based No Model for Large Eddy Simulations of Non Premixed Turbulent Jets with Enthalpy Loss

2015 ◽  
Vol 94 (4) ◽  
pp. 691-729 ◽  
Author(s):  
Carlo Locci ◽  
Olivier Colin ◽  
Damien Poitou ◽  
Fabian Mauss
Keyword(s):  
Turbulent Jets ◽  
Large Eddy Simulations ◽  
Large Eddy

scholarly journals Large-eddy simulations of variable-density turbulent jets

2018 ◽  
Vol 1128 ◽  
pp. 012016
Author(s):  
V Ivashchenko ◽  
V Ryzhenkov ◽  
R Mullyadzhanov
Keyword(s):  
Turbulent Jets ◽  
Variable Density ◽  
Large Eddy Simulations ◽  
Large Eddy

Full-Field Dependence on Inlet Modeling of Non-Isothermal Turbulent Jets Using Validated Large Eddy Simulations

2019 ◽  
Vol 141 (8) ◽  
Author(s):  
Sasan Salkhordeh ◽  
Mark L. Kimber
Keyword(s):  
Near Field ◽  
Turbulent Jets ◽  
Vital Role ◽  
Large Eddy Simulations ◽  
Turbulent Jet ◽  
Far Field ◽  
Current Effort ◽  
Full Field ◽  
Large Eddy ◽  
Inlet Conditions

Inlet conditions for a turbulent jet are known to affect the near field behavior but eventually lose their significance downstream. Metrics of importance are often derived from mean and fluctuating velocity components, but little has been done to explore inlet effects on transport of a scalar quantity (e.g., temperature). This paper aims to provide fundamental understanding in this regard and employs large eddy simulations (LES) of a nonisothermal round turbulent jet (Reynolds number of 16,000) with geometry and boundary conditions mimicked after a well-known experimental study. The jet inlet is first modeled with a standard Blasius profile and next by performing a simulation of the upstream flow modeled with either detached eddy simulations (DES) or LES for the second and third approaches, respectively. Only the model employing LES for both upstream nozzle and downstream jet is found to completely capture the root-mean-square (RMS) temperature behavior, namely, a distinct hump when normalized by the local mean centerline temperature at roughly five diameters downstream. Regarding the far field conditions, all three inlet conditions converge for the centerline values, but the radial distributions still portray non-negligible differences. Not surprisingly, the complete LES modeling approach agrees the best with experimental data for mean and RMS distributions, suggesting that the inlet condition plays a vital role in both the near and far field of the jet. The current effort is the very first LES study to successfully capture flow physics for a nonisothermal round turbulent jet in near and far field locations.

scholarly journals Large eddy simulations of differential molecular diffusion in non-reacting turbulent jets of H2/CO2mixing with air

2014 ◽  
Vol 26 (2) ◽  
pp. 025102 ◽  
Author(s):  
G. Maragkos ◽  
P. Rauwoens ◽  
D. Fauconnier ◽  
B. Merci
Keyword(s):  
Molecular Diffusion ◽  
Turbulent Jets ◽  
Large Eddy Simulations ◽  
Large Eddy
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