Theoretical Research on the Rotational Dispersion Coefficient of Fiber in the Turbulent Shear Flow of Fiber Suspension

GAO Zhen-yu; LIN Jian-zhong; LI Jun

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Article Navigation > Applied Mathematics and Mechanics > 2007 > 28(3): 263-269

GAO Zhen-yu, LIN Jian-zhong, LI Jun. Theoretical Research on the Rotational Dispersion Coefficient of Fiber in the Turbulent Shear Flow of Fiber Suspension[J]. Applied Mathematics and Mechanics, 2007, 28(3): 263-269.

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Theoretical Research on the Rotational Dispersion Coefficient of Fiber in the Turbulent Shear Flow of Fiber Suspension

Department of Mechanics, State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou 310027, P. R. China;
China Metrology University, Hangzhou 310018, P. R. China

Received Date: 2005-03-29
Rev Recd Date: 2006-12-20
Publish Date: 2007-03-15

Abstract

Abstract

The rotational dispersion coefficient of the fiber in the turbulent shear flow of fiber suspension was studied theoretically.The function of correlation moment between the different fluctuating velocity gradient of the flow was built.Then the expression of rotational dispersion coefficient is derived.Which is dependent on the characteristic length,time,velocity and a dimensionless parameter related to the effect of wall.The derived expression of rotational dispersion coefficient can be employed to the inhomogeneous and non-isotropic turbulent flows.Furthermore it can be expanded to three-dimensional turbulent flows and serves as the theoretical basis for solving the turbulent flow of fiber suspension.
- fiber suspension,
- turbulent shear flow,
- rotational dispersion coefficient,
- expression

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References(13)

References

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