Investigation of the mechanisms of jet-engine core noise using large-eddy simulation

2016 ◽  
Author(s):  
Jeffrey D. O'Brien ◽  
Jeonglae Kim ◽  
Matthias Ihme
Keyword(s):  
Large Eddy Simulation ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Large Eddy

Numerical laser beam propagation using large eddy simulation of a jet engine flow field

2015 ◽  
Vol 54 (08) ◽  
pp. 1 ◽  
Author(s):  
Markus Henriksson ◽  
Lars J. Sjöqvist ◽  
Oskar Parmhed ◽  
Christer Fureby
Keyword(s):  
Flow Field ◽  
Large Eddy Simulation ◽  
Laser Beam ◽  
Beam Propagation ◽  
Laser Beam Propagation ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Large Eddy

Reducing Communication Overhead in Large Eddy Simulation of Jet Engine Noise

2010 ◽  
Author(s):  
Yingchong Situ ◽  
Lixia Liu ◽  
Chandra S. Martha ◽  
Matthew E. Louis ◽  
Zhiyuan Li ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Communication Overhead ◽  
Engine Noise ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Large Eddy

A communication-efficient linear system solver for large eddy simulation of jet engine noise

2011 ◽  
Vol 16 (1) ◽  
pp. 157-170 ◽  
Author(s):  
Yingchong Situ ◽  
Lixia Liu ◽  
Chandra S. Martha ◽  
Matthew E. Louis ◽  
Zhiyuan Li ◽  
...  
Keyword(s):  
Linear System ◽  
Large Eddy Simulation ◽  
Engine Noise ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Large Eddy

Large-Eddy Simulation of Turbulent Spray Combustion in a Subscale Aircraft Jet Engine Combustor—Predictions of NO and Soot Concentrations

2013 ◽  
Vol 135 (9) ◽  
Author(s):  
Hideki Moriai ◽  
Ryoichi Kurose ◽  
Hiroaki Watanabe ◽  
Yutaka Yano ◽  
Fumiteru Akamatsu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Large Eddy Simulation ◽  
Spray Combustion ◽  
Combustion Model ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Variable Approach ◽  
Turbulent Spray Combustion ◽  
Large Eddy ◽  
Turbulent Spray

Large-eddy simulation (LES) is applied to turbulent spray combustion fields in a subscale (1/2) aircraft jet engine combustor with an air-blast type swirl fuel nozzle and validity is examined by comparing with measurements. In the LES, Jet-A is used as liquid fuel, and individual droplet motion is tracked in a Lagrangian manner with a parcel model. As a turbulent combustion model, the extended flamelet/progress-variable approach, in which heat transfer between droplets and ambient gas including radiation and heat loss from walls can be taken into account, is employed. A detailed chemistry mechanism of Jet-A with 1537 reactions and 274 chemical species is used. The radiative heat transfer is computed by the discrete ordinate (DO) method. The equivalence ratio ranges from 0.91 to 1.29. The comparisons of the predicted droplet velocity and size, gaseous temperature, NO, and soot emissions with the measurements show that the present LES is capable of capturing the general features of the turbulent spray combustion fields in the subscale (1/2) aircraft jet engine combustor.

Petascale large eddy simulation of jet engine noise based on the truncated SPIKE algorithm

2014 ◽  
Vol 40 (9) ◽  
pp. 496-511 ◽  
Author(s):  
Yingchong Situ ◽  
Chandra S. Martha ◽  
Matthew E. Louis ◽  
Zhiyuan Li ◽  
Ahmed H. Sameh ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Engine Noise ◽  
Jet Engine ◽  
Eddy Simulation ◽  
Large Eddy
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