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Time dependent laminar flow past circular cylinder

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Hi,

I am trying to solve time-dependent laminar flow past a long circular cylinder at Re=100 in unconfined condition. I am using rectangle domain.
The boundary conditions employed for inlet is the inlet bc with uniform velocity and at the outlet I imposed the pressure, no viscous stress.
I have a question about remaining two boundaries...
What should we can use for those two boundaries?
I tried with slip boundary but I didn't get vortex shedding even at Re=100.

Can anybody guide me for this problem??
I will be really thankful for it.

4 Replies Last Post 2015年4月22日 GMT-4 05:04

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Posted: 9 years ago 2015年4月20日 GMT-4 12:08
Reflective?
Reflective?

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Posted: 9 years ago 2015年4月21日 GMT-4 08:17
Please can you make it more clear?
Please can you make it more clear?

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Posted: 9 years ago 2015年4月21日 GMT-4 09:56
Symmetry boundary condition. That would be equivalent to simulating an infinite array of cylinders: no flux lines would be allowed to penetrate the symmetry boundary.
Symmetry boundary condition. That would be equivalent to simulating an infinite array of cylinders: no flux lines would be allowed to penetrate the symmetry boundary.

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Posted: 9 years ago 2015年4月22日 GMT-4 05:04
Now it works... Thanks Daniel
Now it works... Thanks Daniel

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