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[Question #403469]: How to set the damping coefficient of a crowd of powders

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Yufan Zhao <question403469@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 25 Oct 2016 12:52:44 -0000
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New question #403469 on Yade:
https://answers.launchpad.net/yade/+question/403469

Hello everyone,

I have a problem in setting the damping coefficient of powders.  Could any one teach me how to determine this parameter.

My simulation is setting a cloud of metal powders which are settled down on a steel platform by gravity and then the powders is moved by a metallic rake from one side horizontally. That is the powder delivery process in powder bed additive manufacturing. 

I have defined the powder, platform and rake with respective material properties. But I have no idea about the appropriate value of damping coefficient of powders.

I appreciate any helps.

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