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DPM particle tracking considering particle size

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Old   May 31, 2014, 07:22
Default DPM particle tracking considering particle size
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Hello, I am simulating the particle trajectory in a particle sampler using FLUENT DPM, in which i need to consider the particle collection by interception. That means when the distance between particle center and the wall is smaller than the particle radius, the particles should be considered as collected. However, particle-wall interaction only happened when the particle center hit the wall, not the edges, by default in FLUENT. I think I need to write a UDF to calculate the particle-wall distance and determine whether they touch or not. I am new to UDF. Can anyone ever deal with this problems and point me to some source that i can learn from. Thank you so much!!

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Old   August 25, 2014, 13:34
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Hi,

Could you write the UDF?

Thank you.
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Old   September 16, 2014, 13:45
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If you were able to get the UDF please reply.
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Old   October 6, 2019, 14:49
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hey,
pls help to write this udf...
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Old   October 6, 2019, 15:42
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In DPM, particles are simulated as point particles. This is a very basic assumption. The diameter of particles should be much smaller than your typical opening, otherwise it makes no sense to use the method, and you should use a different method, such as 6DOF.
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dpm, finite size, interception, particle tracking

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