Research on particle dispersion in a plane mixing layer with coherent structures

2003 ◽  
Vol 19 (6) ◽  
pp. 535-542 ◽  
Author(s):  
Lin Jonahing ◽  
Lin Jiang ◽  
Shao Xueming ◽  
Shi Xing
Keyword(s):  
Coherent Structures ◽  
Mixing Layer ◽  
Particle Dispersion ◽  
Plane Mixing Layer

scholarly journals Passive scalar tagging for the study of coherent structures in the plane mixing layer

1989 ◽  
Vol 1 (12) ◽  
pp. 2034-2041
Author(s):  
B. R. Ramaprian ◽  
N. D. Sandham ◽  
M. G. Mungal ◽  
W. C. Reynolds
Keyword(s):  
Coherent Structures ◽  
Mixing Layer ◽  
Passive Scalar ◽  
Plane Mixing Layer

Effect of Particle Residence Time on Particle Dispersion in a Plane Mixing Layer

1993 ◽  
Vol 115 (4) ◽  
pp. 751-759 ◽  
Author(s):  
Tsuneaki Ishima ◽  
Koichi Hishida ◽  
Masanobu Maeda
Keyword(s):  
Gas Phase ◽  
Residence Time ◽  
Time Scale ◽  
Characteristic Time ◽  
Mixing Layer ◽  
Particle Dispersion ◽  
Laser Doppler Velocimeter ◽  
Characteristic Time Scale ◽  
Two Phase ◽  
Particle Residence Time

A particle dispersion has been experimentally investigated in a two-dimensional mixing layer with a large relative velocity between particle and gas-phase in order to clarify the effect of particle residence time on particle dispersion. Spherical glass particles 42, 72, and 135 μm in diameter were loaded directly into the origin of the shear layer. Particle number density and the velocities of both particle and gas phase were measured by a laser Doppler velocimeter with modified signal processing for two-phase flow. The results confirmed that the characteristic time scale of the coherent eddy apparently became equivalent to a shorter characteristic time scale due to a less residence time. The particle dispersion coefficients were well correlated to the extended Stokes number defined as the ratio of the particle relaxation time to the substantial eddy characteristic time scale which was evaluated by taking account of the particle residence time.

Spanwise averaging of plane mixing layer properties

AIAA Journal ◽  
1992 ◽  
Vol 30 (3) ◽  
pp. 835-837 ◽  
Author(s):  
James H. Bell ◽  
Michael W. Plesniak ◽  
Rabindra D. Mehta
Keyword(s):  
Mixing Layer ◽  
Plane Mixing Layer
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