Calculate total flux of species

velkon · June 29, 2022, 03:53

Hi all,
Does anybody know how to determine the total flux of a scalar (for example mass fraction of a species) at a certain intersection in a domain? From what I have read it is the sum of the diffusive scalar flux and the convective flux, I however struggle to calculate these. The software that I am using is ConvergeCFD

rvigneshwar · June 29, 2022, 17:52

Hi Velkon,
Yes you can determine the total flux by separating the domain into multiple regions using a flow-through interface, and turning on the mass flux output for each species in the output files > inter-region flow rate output.
If you are looking for a specific scalar flux, you can calculate a particular location using the 3D output files and by selecting respective post variables.
Hope that helped. Let me know if you need more clarity on it.

June 29, 2022, 03:53	Calculate total flux of species	#1
velkon New Member velkon123 Join Date: Jan 2020 Posts: 14 Rep Power: 6	Hi all, Does anybody know how to determine the total flux of a scalar (for example mass fraction of a species) at a certain intersection in a domain? From what I have read it is the sum of the diffusive scalar flux and the convective flux, I however struggle to calculate these. The software that I am using is ConvergeCFD

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June 29, 2022, 17:52		#2
rvigneshwar New Member Vigneshwar Ravisankar Join Date: Apr 2019 Posts: 26 Rep Power: 7	Hi Velkon, Yes you can determine the total flux by separating the domain into multiple regions using a flow-through interface, and turning on the mass flux output for each species in the output files > inter-region flow rate output. If you are looking for a specific scalar flux, you can calculate a particular location using the 3D output files and by selecting respective post variables. Hope that helped. Let me know if you need more clarity on it.