Eulerian bubbly flow simulation with periodic boundary conditions

Shehryar · May 1, 2017, 00:32

Hello Experts, Hope you are all fine.
I am trying to simulate periodic flow of an Air-Water bubbly system using Eulerian model, transient. - mesh.PNG
i am using zero pressure gradient and enabled gravity to introduce the buoyancy effect. but when i run the simulation, after about 25 seconds, these (results.PNG strange vertical lines start appearing.
Plus, what should be the operating density for my simulation? i have used water density as the operating density but it underpredicts the slip velocity. Kindly guide me about this too.
Thank you in anticipation

fabriciotb · May 6, 2017, 20:44

Dear Shehryar.

Could you give me more information about this work?

Thanks.

Shehryar · May 7, 2017, 00:07

thank you for concern.
yes i can share with you further information for sure.
please give me your email address for further correspondence.

May 1, 2017, 00:32	Eulerian bubbly flow simulation with periodic boundary conditions	#1
Shehryar New Member Ali Shehryar Join Date: Dec 2016 Posts: 13 Rep Power: 9	Hello Experts, Hope you are all fine. I am trying to simulate periodic flow of an Air-Water bubbly system using Eulerian model, transient. - mesh.PNG i am using zero pressure gradient and enabled gravity to introduce the buoyancy effect. but when i run the simulation, after about 25 seconds, these (results.PNG strange vertical lines start appearing. Plus, what should be the operating density for my simulation? i have used water density as the operating density but it underpredicts the slip velocity. Kindly guide me about this too. Thank you in anticipation Last edited by Shehryar; May 1, 2017 at 00:37. Reason: typo

May 7, 2017, 00:07	eulerian bubbly flow	#3
Shehryar New Member Ali Shehryar Join Date: Dec 2016 Posts: 13 Rep Power: 9	thank you for concern. yes i can share with you further information for sure. please give me your email address for further correspondence.

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May 6, 2017, 20:44		#2
fabriciotb New Member Fabricio Join Date: Dec 2009 Location: Brazil - São Paulo Posts: 28 Rep Power: 16	Dear Shehryar. Could you give me more information about this work? Thanks.