Species mass transfer model clarification

andrew-c · March 20, 2023, 16:13

I'm a bit confused about the "species mass transfer" model for multiphase flows. I could not find specific information about how this mass transfer mechanism works in the theory guide/user guide.

For example:
- What is/are the governing equation(s) for this mechanism?
- Is it used to model Fickian diffusion, or phase change (or both)?
- What does the "interphase mass transfer coefficient" do, and how is it calculated?
- What happens if interphase mass transfer coefficient is set to zero?

Screen Shot 2023-03-20 at 4.03.07 PM.jpg

Thanks!

andrew-c · March 20, 2023, 16:51

Replying because I actually just found the proper documentation for it:

https://ansyshelp.ansys.com/account/...-3A72B96D.html

Hope this helps someone in the future.

March 20, 2023, 16:13	Species mass transfer model clarification	#1
andrew-c New Member Andrew Join Date: Dec 2022 Posts: 29 Rep Power: 3	I'm a bit confused about the "species mass transfer" model for multiphase flows. I could not find specific information about how this mass transfer mechanism works in the theory guide/user guide. For example: - What is/are the governing equation(s) for this mechanism? - Is it used to model Fickian diffusion, or phase change (or both)? - What does the "interphase mass transfer coefficient" do, and how is it calculated? - What happens if interphase mass transfer coefficient is set to zero? Screen Shot 2023-03-20 at 4.03.07 PM.jpg Thanks!

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March 20, 2023, 16:51		#2
andrew-c New Member Andrew Join Date: Dec 2022 Posts: 29 Rep Power: 3	Replying because I actually just found the proper documentation for it: https://ansyshelp.ansys.com/account/...-3A72B96D.html Hope this helps someone in the future.