Surya Deb
Ansys Employee
Hello, n1.) Yes, it is slightly different when using unsteady vs steady state tracking for DPM. For unsteady particle tracking, particles or rather parcels are tracked in a time accurate manner and so particles might not cross the entire domain in the time specified depending on the velocity and other flow properties involved. Please check this link to find more information on this. https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_ug/flu_ug_sec_discrete_file_props.html. You can make use of the Histogram in Fluent by reading back the sample DPM file. n2.) I think you can make use of DEFINE_DPM_BC UDF to customize your trap conditions as well as writing out selective information to external files. Please check a few examples in this link. https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v211/en/flu_udf/flu_udf_sec_define_dpm_bc.html?q=DEFINE_DPM_BC. You will need to modify and test the UDF according to your needs.nI hope this helps.nRegards,nSDnn
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