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Including the particle contact force in a DPM UDF

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Old   January 15, 2020, 06:42
Default Including the particle contact force in a DPM UDF
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Filippo Marchelli
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I am trying to write a UDF using DEFINE_DPM_BODY_FORCE to modify the friction force acting on particles in CFD-DEM simulations in Fluent. To do this, I need to include in the UDF the normal contact force acting on the particle. However, I haven't found a way to do this in the guide. Is there a way to include the contact forces acting on a particle in a UDF? Thanks.
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Old   February 18, 2021, 10:45
Default Including the particle contact force in a DPM UDF
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Will Crawford-Jones
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Hi, sorry this is a while ago now. Were you ever able to find out how to do this? You're using a DPM, i'm trying to do the same for 6DOF model, but unsure what the correct approach is. Did you have any success?

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Old   February 18, 2021, 11:32
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Filippo Marchelli
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Quote:
Originally Posted by wcj1n18 View Post
Hi, sorry this is a while ago now. Were you ever able to find out how to do this? You're using a DPM, i'm trying to do the same for 6DOF model, but unsure what the correct approach is. Did you have any success?

Cheers

Hi, no worries! I will have to disappoint you, I did not find a way to do this and in the end decided it was easier for me to try another program (MFIX). But I remember searching through a lot of different resources back then and consistently not finding anything, so perhaps it's just not possible. Good luck with your model!
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Old   February 18, 2021, 12:01
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OK, thanks anyway. I will look around and think for a while longer before probably giving up and trying a different software!
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cfd-dem, contact, define_dpm, friction, udf

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