| EFFECTS OF TENSOR CLOSURE MODELS AND 3-D ORIENTATION ON THE STABILITY OF FIBER SUSPENSIONS IN A CHANNEL FLOW |
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| 作者姓名： | 游振江 林建忠 |
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| 作者单位： | Department of Mechanics，State Key Laboratory of Fluid Power Transmission and Control，Zhejiang University，Hangzhou 310027，P.R.China，Department of Mechanics，State Key Laboratory of Fluid Power Transmission and Control，Zhejiang University，Hangzhou 310027，P.R.China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .1 0 3 72 0 90 ) |
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| 摘 要： | IntroductionFlowoffibresuspensionshasbeenveryfamiliarinmanyindustrialfields.Fibreadditivesplayanimportantroleindragreductioninmanytypesofflow1- 3].Inthesuspensions,somebehavioroftheflowmaybealteredbythefibres.Oneoftheimportantexamplesisthehydrodynamicsta…
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| 关 键 词： | 张量闭合模型 纤维定向作用 稳定性 管道流 流体力学 |
| 收稿时间： | 9 October 2003 |
Effects of tensor closure models and 3-D orientation on the stability of fiber suspensions in a channel flow |
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| You Zhen-jiang,Lin Jian-zhong Professor.EFFECTS OF TENSOR CLOSURE MODELS AND 3-D ORIENTATION ON THE STABILITY OF FIBER SUSPENSIONS IN A CHANNEL FLOW[J].Applied Mathematics and Mechanics(English Edition),2005,26(3):307-312. |
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| Authors: | You Zhen-jiang Lin Jian-zhong Professor |
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| Institution: | Department ofMechanics, State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, P.R. China |
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| Abstract: | Three different kinds of closure model of fiber orientation tensors were applied to simulate numerically the hydrodynamic stability of fiber suspensions in a channel flow. The effects of closure models and three_dimensional (3_D) orientation distribution of fibers on the results of stability analysis were examined. It is found that the relationship of the behavior in hydrodynamic stability and the parameter of the fiber given by all the three models are the same. However, the attenuation of flow instability is most distinct using 3_D hybrid model because the orientation of the fiber departures from the flow direction, and least apparent using its 2_D counterpart for that the fibers show a tendency towards alignment with the flow direction in this case. |
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| Keywords: | fiber suspension hydrodynamic stability channel flow closure model fiber orientation |
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