DPM drag coefficient

August 12, 2007, 11:35

hello everyone, i'm simulating a 3d fluid flow through a pipe ellbow. In this flow i'm injecting particles with the dpm. so far i don't have any problems. but now i am interested in changing the drag coefficient or the shape of the particles. Is there any way to do this?

thanks a lot Spielkind

August 12, 2007, 13:27

Hi

you can model a custom dpm drag using a user defined function. the macro to be used is DEFINE_DPM_DRAG(). check out the udf manual for the usage.

best wishes, Sujith

August 12, 2007, 11:35	DPM drag coefficient	#1
Spielkind Guest Posts: n/a	hello everyone, i'm simulating a 3d fluid flow through a pipe ellbow. In this flow i'm injecting particles with the dpm. so far i don't have any problems. but now i am interested in changing the drag coefficient or the shape of the particles. Is there any way to do this? thanks a lot Spielkind

August 12, 2007, 13:27	Re: DPM drag coefficient	#2
Sujith Guest Posts: n/a	Hi you can model a custom dpm drag using a user defined function. the macro to be used is DEFINE_DPM_DRAG(). check out the udf manual for the usage. best wishes, Sujith

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