How to correct the back flow

jz666 · June 5, 2020, 07:13

Dear Foamers,

I have some issue from openfoam simulation and need your kind help.

I am simulating falling liquid film on a vertical plate, the geometry is shown as attached.

https://photos.app.goo.gl/jeZFvWZteaQheBr79

I simply applied the boundary conditions from DamBrake tutorial but I always get strong back flow at the outlet. Could anyone help me to get out of this issue? Thank you a lot!

Best,

JZ

geth03 · June 17, 2020, 09:20

can you tell more about your case?
where is the inlet/outlet/walls/other patches?
what is the blue/red colored area? which fluid is entering where
and exiting your domain?
show us your initial value files.

June 5, 2020, 07:13	How to correct the back flow	#1
jz666 New Member Join Date: Mar 2020 Posts: 3 Rep Power: 6	Dear Foamers, I have some issue from openfoam simulation and need your kind help. I am simulating falling liquid film on a vertical plate, the geometry is shown as attached. https://photos.app.goo.gl/jeZFvWZteaQheBr79 I simply applied the boundary conditions from DamBrake tutorial but I always get strong back flow at the outlet. Could anyone help me to get out of this issue? Thank you a lot! Best, JZ

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June 17, 2020, 09:20		#2
geth03 Senior Member Join Date: Dec 2019 Location: Cologne, Germany Posts: 355 Rep Power: 8	can you tell more about your case? where is the inlet/outlet/walls/other patches? what is the blue/red colored area? which fluid is entering where and exiting your domain? show us your initial value files.