Boundary condition in star CCM+

amarjogot · July 30, 2013, 15:10

Hello everyone, I am having some problem with my model. While simulating this model in Fluent I used outflow for my outlet. Can anyone please tell me what boundary condition can replace outflow in star CCM+.

Kasey · July 30, 2013, 15:17

pressure outlet

amarjogot · July 30, 2013, 15:44

Thank you very much Kasey. Do i need to change the turbulent intensity ratio (TIR) or voscosity ratio (TVR), because at the inlet TIR = 1 and TVR = 10.

siara817 · July 31, 2013, 04:14

you should find in literature source about turbulent intensity.

amarjogot · August 6, 2013, 15:42

Thank you very much everyone. My model is running fine. Now I am trying to create finer mesh at the middle part of my cylinder (throughout) ( shown by the red sign in the figure). Could you please tell me how can I do that. Thanks in advance for your help.

Zoheb

July 30, 2013, 15:10	Boundary condition in star CCM+	#1
amarjogot New Member shoumo Join Date: Jun 2013 Posts: 16 Rep Power: 12	Hello everyone, I am having some problem with my model. While simulating this model in Fluent I used outflow for my outlet. Can anyone please tell me what boundary condition can replace outflow in star CCM+.

July 31, 2013, 04:14		#4
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 17	you should find in literature source about turbulent intensity. __________________ Good luck Siamak

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July 30, 2013, 15:17		#2
Kasey New Member kw Join Date: Oct 2011 Posts: 24 Rep Power: 14	pressure outlet

July 30, 2013, 15:44		#3
amarjogot New Member shoumo Join Date: Jun 2013 Posts: 16 Rep Power: 12	Thank you very much Kasey. Do i need to change the turbulent intensity ratio (TIR) or voscosity ratio (TVR), because at the inlet TIR = 1 and TVR = 10.