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New formula for drag coefficient of cylindrical particles |
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| Authors: | Xiaohui Guo a Jianzhong Lin a b Deming Nie a a Institute of Fluid Mechanics China Jiliang University Hangzhou China b State Key Laboratory of Fluid Power Transmission Control Zhejiang University Hangzhou China |
| Affiliation: | Xiaohui Guo a,Jianzhong Lin a,b,Deming Nie a a Institute of Fluid Mechanics,China Jiliang University,Hangzhou 310018,China b State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China |
| Abstract: | The drag force on a cylindrical particle is calculated using lattice Boltzmann method.The results show that the drag coefficient of a particle with different orientation angles decreases with increasing Reynolds number.When the principal axis of the particle is parallel to flow,the drag coefficient is much larger than that of others and decreases fastest with increasing Reynolds number,which becomes more obvious with increasing particle aspect ratio.When the principal axis of the particle is inclined to flo... |
| Keywords: | Cylindrical particle Drag coefficient Correlation formula Lattice Boltzmann method |
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