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Opening Boundary Condition

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Old   February 4, 2014, 07:39
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My Dear Friends can anybody tell me whats the difference between Outlet or Inlet and Opening Boundary Condition
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Old   February 5, 2014, 17:14
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Hello,

the inlet boundary condition is for boundaries where the fluid predominantly flows into the domain. When you have a flow which is predominantly out of the domain you use the outlet boundary condition. At an opening the fluid can flow simultaneously both in and out of the domain.
That means either all of the fluid might flow in to the domain at the opening or all of the fluid might flow out of the domain or a mixture of in- and outflow might occur.
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Old   February 6, 2014, 01:17
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Thank You Very Much tb_CFd. I am Clear now, But in the Outlet Condition also we are providind some Backflow conditions right what do you say about it.
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Old   February 17, 2014, 02:22
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we do not specify back flow condition in CFX, it is done in Fluent
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Old   February 17, 2014, 07:56
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Y it is such what is the difference with fluent and cfx here
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