rising bubble vof simulation in fluent

vinita123 · December 21, 2015, 07:40

Hi

I want to do the rising bubble simulation using vof model of fluent.The system is an air bubble in a stagnant liquid towards the bottom of narrow column.I am having problem in geometry creation using gambit. If anyone has done or knows about this problem please tell me the solution.

CeesH · December 21, 2015, 08:23

Hi,

This sounds like a relatively simple problem. I assume you want no walls and so, so periodic boundary? Perhaps easiest would be to simply create a box geometry in the geometry editor, and mesh it with hexahedral cells. Or do you have other intentions?

By the way, please post this kind of questions in the FLUENT forum rather than the main CFD forum.

Best
Cees

vinita123 · December 21, 2015, 08:40

Thanks for your reply Cees. No i dont want periodic boundary condition i did create the geometry containing three walls and a pressure outlet and did the meshing by using quadrilateral mesh because its a two dimensional problem. The problem is when the mesh is imported to fluent and read,there are some additional walls created and i am not getting the result which I should get.

December 21, 2015, 07:40	rising bubble vof simulation in fluent	#1
vinita123 New Member vinita Join Date: Dec 2015 Posts: 4 Rep Power: 11	Hi I want to do the rising bubble simulation using vof model of fluent.The system is an air bubble in a stagnant liquid towards the bottom of narrow column.I am having problem in geometry creation using gambit. If anyone has done or knows about this problem please tell me the solution.

December 21, 2015, 08:23		#2
CeesH Senior Member Cees Haringa Join Date: May 2013 Location: Delft Posts: 607 Rep Power: 0	Hi, This sounds like a relatively simple problem. I assume you want no walls and so, so periodic boundary? Perhaps easiest would be to simply create a box geometry in the geometry editor, and mesh it with hexahedral cells. Or do you have other intentions? By the way, please post this kind of questions in the FLUENT forum rather than the main CFD forum. Best Cees Last edited by CeesH; December 21, 2015 at 08:26. Reason: this post is in the wrong place.

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December 21, 2015, 08:40		#3
vinita123 New Member vinita Join Date: Dec 2015 Posts: 4 Rep Power: 11	Thanks for your reply Cees. No i dont want periodic boundary condition i did create the geometry containing three walls and a pressure outlet and did the meshing by using quadrilateral mesh because its a two dimensional problem. The problem is when the mesh is imported to fluent and read,there are some additional walls created and i am not getting the result which I should get.