how to create one DEM particle (projectile)

raguelmoon · January 5, 2014, 10:18

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

siara817 · January 10, 2014, 05:03

Have you tried reading the tutorial, because it has been illustrated how to use DEM, or you have specific problem in applying DEM?

raguelmoon · January 10, 2014, 07:22

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

siara817 · January 12, 2014, 08:21

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?

raguelmoon · January 12, 2014, 08:32

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?
Thanks

January 5, 2014, 10:18	how to create one DEM particle (projectile)	#1
raguelmoon New Member Ram Join Date: Apr 2011 Posts: 14 Rep Power: 14	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

January 10, 2014, 05:03		#2
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 17	Have you tried reading the tutorial, because it has been illustrated how to use DEM, or you have specific problem in applying DEM? __________________ Good luck Siamak

January 12, 2014, 08:21		#4
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 17	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? __________________ Good luck Siamak

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January 10, 2014, 07:22		#3
raguelmoon New Member Ram Join Date: Apr 2011 Posts: 14 Rep Power: 14	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

January 12, 2014, 08:32		#5
raguelmoon New Member Ram Join Date: Apr 2011 Posts: 14 Rep Power: 14	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? Thanks