【摘 要】
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In this paper,granular segregation in a two-compartment cell in zero gravity is studied numerically by DEM simulation.In the simulation using a virtual window m
【机 构】
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Key Laboratory of Soft Matter Physics, Beijing National Laboratory for Condense Matter Physics, Inst
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In this paper,granular segregation in a two-compartment cell in zero gravity is studied numerically by DEM simulation.In the simulation using a virtual window method we find a non-monotonic flux,a function which goves the segregation.A parameter is used to quantify the segregation.The effect of three parameters:the total number of particles N,the excitation strength F,and the position of the window coupling the two compartments,on the segregation and the waiting time τ are investigated.It is found that the segregation observed in zero gravity exists and does not depend on the excitation strength F.The waiting time τ,however,depends strongly on Γ:the higher the F,the lower the waiting time τ.The simulation results are important in guiding the S J-10 satellite microgravity experiments.
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