| NUMERICAL SIMULATION OF ORIENTATION DISTRIBUTION FUNCTION OF CYLINDRICAL PARTICLE SUSPENSIONS |
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| 作者姓名： | 林建忠 张凌新 |
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| 作者单位： | LIN Jian_zhong，ZHANG Ling_xin (Department of Mechanics，State Key Laboratory of Fluid Power Transmission and Control，Zhejiang University，Hangzhou 310027，P C China) (Contributed by LIN Jian_zhong) |
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| 基金项目： | theNationalNaturalScienceFoundationofChinaforOutstandingYouth
( 1 992 52 1 0 ) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｃｙｌｉｎｄｒｉｃａｌｐａｒｔｉｃｌｅｓｕｓｐｅｎｓｉｏｎｓｉｎｖｏｌｖｅｓｏｍｅｄｉｆｆｉｃｕｌｔｐｒｏｂｌｅｍｓｉｎｔｈｅｔｈｅｏｒｅｔｉｃａｌｒｅｓｅａｒｃｈｏｆｍｕｌｔｉｐｈａｓｅｆｌｏｗａｎｄｎｏｎ＿Ｎｅｗｔｏｎｉａｎｆｌｏｗ ,ａｎｄｈａｖｅｗｉｄｅａｐｐｌｉｃａｔｉｏｎｉｎｔｈｅｉｎｄｕｓｔｒｉａｌｅｎｇｉｎｅｅｒｉｎｇ .Ｆｏｒｅｘａｍｐｌｅ,ｄｕｒｉｎｇｔｈｅｐｒｏｃｅｓｓｉｎｇｏｆｓｏｍｅｍａｔｅｒｉａｌｓ,ｐｒｉｍｉｔｉｖｅｍａｔｅｒｉａｌｐｒｏｐｅ…
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| 收稿时间： | 2 March 2001 |
Numerical simulation of orientation distribution function of cylindrical particle suspensions |
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| Lin Jian-zhong Professor,Zhang Ling-xin Doctorial student.NUMERICAL SIMULATION OF ORIENTATION DISTRIBUTION FUNCTION OF CYLINDRICAL PARTICLE SUSPENSIONS[J].Applied Mathematics and Mechanics(English Edition),2002,23(8):906-912. |
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| Authors: | Lin Jian-zhong Professor Zhang Ling-xin Doctorial student |
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| Institution: | Department of Mechanics, State Key Laboratory of Fluid Power Transmission,and Control, Zhejiang University, Hangzhou 310027, P C China |
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| Abstract: | The orientation distribution function of cylindrical particle suspensions was deduced and numerically simulated, and an application was taken in a wedge_shaped flow field. The relationship between the orientation distribution function and particle orientation angles was obtained. The results show that comparing with the most probable angle distribution which comes to being in short time, the distribution of the steady state doesn't vary much in range; the main difference is the anti_clockwise rotation in the right and upper field, that is, particles rotate more at the points where the velocity gradients are larger. The most probable orientations are close to the direction of local streamlines. In the direction of streamlines, with poleradius decreasing, the most probable angles increase, but the angles between their orientations and the local streamlines decrease. |
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| Keywords: | cylindrical particle suspension wedge_shaped flow orientation distribution function most probable angle numerical simulation |
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