Influence of coherent structures in the gas-particle circular cylinder wake flow

To investigate the influence of coherent structures in the gas-particle wake flow, direct numerical simulation （DNS） method was adopted to compute a two-dimensional particle laden wake flow. A high accuracy spectral element method （SEM） was employed to simulate the gas flow field and a Lagrangian ap...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2005-10, Vol.6 (10), p.1132-1136
Main Author: 嵇峰 刘兰 樊建人 岑可法
Format: Article
Language:English
Subjects:
气体循环
气体粒子
汽轮机
热交换
直接数字模拟
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Summary:To investigate the influence of coherent structures in the gas-particle wake flow, direct numerical simulation （DNS） method was adopted to compute a two-dimensional particle laden wake flow. A high accuracy spectral element method （SEM） was employed to simulate the gas flow field and a Lagrangian approach was used to compute the particles movement. Numerical results showed that at the same Stokes numbers, particles would be greatly impacted by the development of the coherent structure. But with different Stokes numbers, it can be seen that the large-scale vortex structures would influence the particle flow differently. While under different Reynolds numbers （150 and 200）, there are no great changes in the particle laden flow.
ISSN:1673-565X
1009-3095
1862-1775
DOI:10.1631/jzus.2005.A1132