Three-Dimensional Multi-Physics CFD Simulations of Sand Transfer around a Cube
American Journal of Environmental Protection
Volume 2, Issue 6, December 2013, Pages: 188-193
Received: Jan. 8, 2014; Published: Feb. 20, 2014
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Kazuto Matsui, Graduate School of Mechanical Engineering, Tokyo University of Science, Tokyo, Japan
Masaya Suzuki, Aviation Program Group, Japan Aerospace Exploration Agency (JAXA), Tokyo, Japan
Makoto Yamamoto, Department of Mechanical Engineering, Tokyo University of Science, Tokyo, Japan
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Recently, concerns on environmental problem of the earth are rapidly growing on. One of the typical issues is desertification. To stop or suppress the harmful effects of desertification, the prediction method which can clarify the mechanism of desertification is required. For the purpose it is expected that numerical simulations are very useful. A number of research papers on sand transfer have been published in the literatures. However, they assumed that the sand particle trajectory is parabolic. This assumption would over-simplify the physics. Our final goals are to construct the multi-physics simulation technique which can correctly reproduce sand transfer, and, by applying it, to develop an effective prevention method for desertification. The purpose in the present study is to investigate the effect of particle trajectory computation. Simulating three-dimensional sand transfer around a cube, and comparing the numerical results with the experiments, we confirmed that our method can reasonably predict sand transfer around a cube, and the pressure gradient force should be taken into account in the particle trajectory computation.
Desertification, Sand Transfer, Cube, Multi-Physics Simulation, Particle Trajectory
To cite this article
Kazuto Matsui, Masaya Suzuki, Makoto Yamamoto, Three-Dimensional Multi-Physics CFD Simulations of Sand Transfer around a Cube, American Journal of Environmental Protection. Vol. 2, No. 6, 2013, pp. 188-193. doi: 10.11648/j.ajep.20130206.21
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