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how to create one DEM particle (projectile)

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Old   January 5, 2014, 11:18
Default how to create one DEM particle (projectile)
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Ram
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Hi Users,
I have created cylinder filled with glass beads. I want to pour one big bead (projectile) on the static bed of glass beads to study sinking depth. Please anybody guide me how o create just one big projectile and let it fall on the granular bed?
thanks in advance!!
Ram
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Old   January 10, 2014, 06:03
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siamak rahimi ardkapan
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Have you tried reading the tutorial, because it has been illustrated how to use DEM, or you have specific problem in applying DEM?
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Old   January 10, 2014, 08:22
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Thanks Sir for replying!
I have gone into tutorial carefully. There is no way to control the number of particles but I have apply my own trick and now I can pour particles according to my wish!! But there is no way to define specific wall type. For example I want to create bottom wall of cylinder with another material than side wall's material. I have digged out whole tutorial but failed to get one. Please can you guide me in this connection?
Thanks!!
RC
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Old   January 12, 2014, 09:21
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It is possible to change the properties of a wall to the values as you wish. What is the specific reason that you want to change your wall material. which property is of interest?
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Old   January 12, 2014, 09:32
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I want to interact glass beads with bottom wall differently than glass beads and side wall. For example, to define young's modulus, restitution and friction between glass_beads - bottom_wall and between side_wall - glass_bead differently. Please can you suggest me tutorial on such example?
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