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January 14, 2014, 00:16 |
Boundary Conditions Validity
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#1 |
Member
Osman
Join Date: Oct 2012
Location: Japan
Posts: 53
Rep Power: 13 |
Is the boundary condition applied in this system is valid ??
I am using staggered grid & fractional step method to solve Incompressible NS Eqs. |
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January 15, 2014, 17:18 |
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#2 |
Member
Join Date: Jun 2011
Posts: 51
Rep Power: 15 |
Greetings,
I do not really understand what you want to test. It looks like you will be able to simulate nothing! Regards, |
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January 15, 2014, 20:25 |
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#3 |
Member
Osman
Join Date: Oct 2012
Location: Japan
Posts: 53
Rep Power: 13 |
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January 18, 2014, 12:53 |
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#4 |
Senior Member
Ashwani
Join Date: Sep 2013
Location: Hyderabad
Posts: 154
Rep Power: 12 |
The Dirichlet pressure boundary condition we can apply only when the flow will be fully developed at the outlet.
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January 18, 2014, 12:54 |
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#5 |
Member
Osman
Join Date: Oct 2012
Location: Japan
Posts: 53
Rep Power: 13 |
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January 18, 2014, 13:57 |
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#6 |
Senior Member
Ashwani
Join Date: Sep 2013
Location: Hyderabad
Posts: 154
Rep Power: 12 |
The boundary condition then seems fine. Since, the oscillating body inside will be something like the source term for Navier-Stokes. Also, how you are giving these oscillating conditions.
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January 18, 2014, 14:06 |
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#7 |
Member
Osman
Join Date: Oct 2012
Location: Japan
Posts: 53
Rep Power: 13 |
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January 18, 2014, 16:03 |
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#8 |
Senior Member
Vino
Join Date: Mar 2013
Posts: 130
Rep Power: 13 |
As far as I know, At inlet (velocity to be specified, pressure to be interpolated) and At outlet (velocity to be specified, pressure to be interpolated) for Incompressible flows.
Since I am not working with fractional step method, I don't know whether you can use Pressure boundary condition on both inlet and outlet. |
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January 18, 2014, 22:20 |
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#9 |
Member
Osman
Join Date: Oct 2012
Location: Japan
Posts: 53
Rep Power: 13 |
I am still waiting for any one (has experience) to confirm weather i can or can't use these BC !!!
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