Large-eddy simulation of a pulsed jet into a supersonic crossflow

2016 ◽  
Vol 140 ◽  
pp. 320-333 ◽  
Author(s):  
Haitao Shi ◽  
Guolei Wang ◽  
Xisheng Luo ◽  
Jiming Yang ◽  
Xi-Yun Lu
Keyword(s):  
Large Eddy Simulation ◽  
Pulsed Jet ◽  
Eddy Simulation ◽  
Large Eddy

Large eddy simulation of a pulsed jet in cross-flow

2012 ◽  
Vol 695 ◽  
pp. 1-34 ◽  
Author(s):  
Axel Coussement ◽  
O. Gicquel ◽  
G. Degrez
Keyword(s):  
Large Eddy Simulation ◽  
Cross Flow ◽  
Sine Wave ◽  
Navier Stokes ◽  
Pulsed Jet ◽  
Eddy Simulation ◽  
Characteristic Boundary ◽  
Jet In Cross Flow ◽  
Large Eddy ◽  
Flow Configurations

AbstractThis study quantifies the mixing that results from a pulsed jet in cross-flow in the near jet region. By large eddy simulation computations, it also helps to understand the physical phenomena involved in the formation of the pulsed jet in cross-flow. The boundary conditions of the jet inlet are implemented via a Navier–Stokes characteristic boundary condition coupled with a Fourier series development. The signals used to pulse the jet inlet are a square or a sine wave. A new way of characterizing the mixing is introduced with the goal of easily interpreting and quantifying the complicated mixing process involved in a pulsed jet in cross-flow flow fields. Different flow configurations, pulsed and non-pulsed, are computed and compared, keeping the root mean square value of the signal constant. This comparison not only allows the characterization of the mixing but also illustrates some of the properties of the mixing characterization.

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