A particle-based ellipsoidal statistical Bhatnagar–Gross–Krook solver with variable weights for the simulation of large density gradients in micro- and nano-nozzles

2020 ◽  
Vol 32 (11) ◽  
pp. 112009 ◽  
Author(s):  
M. Pfeiffer
Keyword(s):  
Density Gradients ◽  
Variable Weights ◽  
Large Density

scholarly journals Numerical Benchmark for High-Reynolds-Number Supercritical Flows with Large Density Gradients

AIAA Journal ◽  
2016 ◽  
Vol 54 (5) ◽  
pp. 1445-1460 ◽  
Author(s):  
A. M. Ruiz ◽  
G. Lacaze ◽  
J. C. Oefelein ◽  
R. Mari ◽  
B. Cuenot ◽  
...  
Keyword(s):  
Reynolds Number ◽  
High Reynolds Number ◽  
Density Gradients ◽  
Large Density ◽  
High Reynolds ◽  
Supercritical Flows

Unstable Waves of Jet Flows With Density Inhomogeneity

1989 ◽  
Vol 111 (3) ◽  
pp. 238-242
Author(s):  
Y. T. Fung
Keyword(s):  
Velocity Profile ◽  
Density Gradient ◽  
Necessary Condition ◽  
Jet Flows ◽  
Density Gradients ◽  
Density Inhomogeneity ◽  
Axisymmetric Jet ◽  
Large Density ◽  
Dependent Density

Instability of axisymmetric jet flows of a fluid having a radius-dependent density is investigated. The necessary condition for the existence of unstable waves depends not only on the velocity profile but also on the density gradient as well. Large density gradients, positive or negative, have stabilizing effects. The semicircle theorem for amplified waves is valid in this case. It is shown by considering the top-hat type velocity profile that the velocity-dependent semicircle bound is the best possible.

Development of turbulent boundary layer with large density gradients

1994 ◽  
Vol 9 (2) ◽  
pp. 165-173 ◽  
Author(s):  
R. Riva ◽  
G. Binder ◽  
M. Favre-Marinet ◽  
J.-L. Harion
Keyword(s):  
Boundary Layer ◽  
Turbulent Boundary Layer ◽  
Density Gradients ◽  
Large Density
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