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| Investigation of Parameters in Euler Two-Phase Model for Wind Blow Sand |
| Wang Kanglong1, Wu Jianjun1, Luo Shenghu2 |
1. Ministry of Education Key Laboratory of Mechanics on Disaster and Environment in Western China/School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China;
2. School of Science, Xi'an University of Science and Technology, Xi'an 710054, China |
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Abstract Using the numerical simulation method, the effects of the kinetic viscosity μs,kin, the momentum exchange coefficient β and the particle restitution coefficient ess of Euler two-phase model on windblown sand movement are analyzed. The results demonstrate that the kinetic viscosity μs,kin affects the sand emission rate over sand bed, the momentum exchange coefficient β changes the development of streamwise sand transport rate, and the vertical distribution of sand mass flux varies with the particle restitution coefficient ess. The parameters obtained through numerical simulation are utilized to compute the windblown sand movement. And the characteristics of the windblown sand movement demonstrated by Euler two-phase model are in good accordance with those given in former experiments and numerical simulations. It shows that the parameters are suitable for the simulation of the windblown sand movement.
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Received: 26 December 2013
Published: 20 November 2014
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Corresponding Authors:
武建军(Email:wujjun@lzu.edu.cn)
E-mail: wujjun@lzu.edu.cn
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2014, Vol. 34 
