Large Eddy Simulation with dense fluid approximation and experimental study on the commercial diesel trans-critical injections

2021 ◽  
Vol 183 ◽  
pp. 116181
Author(s):  
Dehao Ju ◽  
Jiahui Deng ◽  
Zhong Huang ◽  
Jin Xia ◽  
Hao Qin ◽  
...  
Keyword(s):  
Experimental Study ◽  
Large Eddy Simulation ◽  
Fluid Approximation ◽  
Eddy Simulation ◽  
Dense Fluid ◽  
Large Eddy

scholarly journals Large-eddy simulation and experimental study of deflecting oscillation of planar opposed jets

2013 ◽  
Vol 62 (8) ◽  
pp. 084704
Author(s):  
Tu Gong-Yi ◽  
Li Wei-Feng ◽  
Huang Guo-Feng ◽  
Wang Fu-Chen
Keyword(s):  
Experimental Study ◽  
Large Eddy Simulation ◽  
Eddy Simulation ◽  
Large Eddy

Application of monotone integrated large eddy simulation to Rayleigh–Taylor mixing

2009 ◽  
Vol 367 (1899) ◽  
pp. 2971-2983 ◽  
Author(s):  
David L. Youngs
Keyword(s):  
Large Eddy Simulation ◽  
Inertial Confinement Fusion ◽  
Initial Conditions ◽  
Initial Density ◽  
Plane Boundary ◽  
Eddy Simulation ◽  
Dense Fluid ◽  
Large Eddy ◽  
Engineering Models ◽  
Rt Instability

Rayleigh–Taylor (RT) instability occurs when a dense fluid rests on top of a light fluid in a gravitational field. It also occurs in an equivalent situation (in the absence of gravity) when an interface between fluids of different density is accelerated by a pressure gradient, e.g. in inertial confinement fusion implosions. Engineering models (Reynolds-averaged Navier–Stokes models) are needed to represent the effect of mixing in complex applications. However, large eddy simulation (LES) currently makes an essential contribution to understanding the mixing process and calibration or validation of the engineering models. In this paper, three cases are used to illustrate the current role of LES: (i) mixing at a plane boundary, (ii) break-up of a layer of dense fluid due to RT instability, and (iii) mixing in a simple spherical implosion. A monotone integrated LES approach is preferred because of the need to treat discontinuities in the flow, i.e. the initial density discontinuities or shock waves. Of particular interest is the influence of initial conditions and how this needs to be allowed for in engineering modelling. It is argued that loss of memory of the initial conditions is unlikely to occur in practical applications.

Large eddy simulation and experimental study on vented gasoline-air mixture explosions in a semi-confined obstructed pipe

2017 ◽  
Vol 339 ◽  
pp. 131-142 ◽  
Author(s):  
Guoqing Li ◽  
Yang Du ◽  
Shimao Wang ◽  
Sheng Qi ◽  
Peili Zhang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Large Eddy Simulation ◽  
Eddy Simulation ◽  
Large Eddy
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