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Large eddy simulation of the gas-particle turbulent wake flow
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LUO Kun, JIN Han-hui, FAN Jian-ren, CEN Ke-fa. Large eddy simulation of the gas-particle turbulent wake flow[J]. Journal of Zhejiang University Science A, 2004, 5(1): 106-110.
@article{title="Large eddy simulation of the gas-particle turbulent wake flow",
author="LUO Kun, JIN Han-hui, FAN Jian-ren, CEN Ke-fa",
journal="Journal of Zhejiang University Science A",
volume="5",
number="1",
pages="106-110",
year="2004",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2004.0106"
}
%0 Journal Article
%T Large eddy simulation of the gas-particle turbulent wake flow
%A LUO Kun
%A JIN Han-hui
%A FAN Jian-ren
%A CEN Ke-fa
%J Journal of Zhejiang University SCIENCE A
%V 5
%N 1
%P 106-110
%@ 1869-1951
%D 2004
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2004.0106
TY - JOUR
T1 - Large eddy simulation of the gas-particle turbulent wake flow
A1 - LUO Kun
A1 - JIN Han-hui
A1 - FAN Jian-ren
A1 - CEN Ke-fa
J0 - Journal of Zhejiang University Science A
VL - 5
IS - 1
SP - 106
EP - 110
%@ 1869-1951
Y1 - 2004
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2004.0106
Abstract: To find out the detailed characteristics of the coherent structures and associated particle dispersion in free shear flow, large eddy simulation method was adopted to investigate a two-dimensional particle-laden wake flow. The well-known Sub-grid Scale mode introduced by Smagorinsky was employed to simulate the gas flow field and Lagrangian approach was used to trace the particles. The results showed that the typical large-scale vortex structures exhibit a stable counter rotating arrangement of opposite sign, and alternately form from the near wall region, shed and move towards the downstream positions of the wake with the development of the flow. For particle dispersion, the Stokes number of particles is a key parameter. At the Stokes numbers of 1.4 and 3.8 the particles concentrate highly in the outer boundary regions. While the particles congregate densely in the vortex core regions at the Stokes number of 0.15, and the particles at Stokes number of 15 assemble in the vortex braid regions and the rib regions between the adjoining vortex structures.
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