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Pressure interpolation at Wall (Heat_Flux BC) in SU2 |
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December 3, 2014, 09:22 |
Pressure interpolation at Wall (Heat_Flux BC) in SU2
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#1 |
Senior Member
Vino
Join Date: Mar 2013
Posts: 130
Rep Power: 13 |
Hi,
I have used a new weight for calculating derivatives and I am using the new derivatives to reconstruct the variables. I am finding oscillations near wall in pressure plot. I would like to clarify few things to understand whats going wrong. 1) How pressure at the wall is calculated? Is it directly extrapolated from the neighbor? Where is it done in the code? I am unable to find the it in Heat_Flux BC. 2) What should I do if I want to just extrapolate the pressure from interior domain? 3) What should I do If I want to keep the variables at the wall without reconstruction(1st order)? Thank you very much.!!! |
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December 14, 2014, 16:39 |
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#2 | |
Senior Member
Heather Kline
Join Date: Jun 2013
Posts: 309
Rep Power: 13 |
Quote:
Since the problem is solved in terms of the conservative variables (density, momentum components, energy) the pressure does not need to be set directly. It is calculated in terms of the conservative variables elsewhere. To extrapolate terms from the interior, use the normal neighbor. Accessing information from the normal neighbor is done in several places in the code, including BC_HeatFlux_Wall. |
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December 15, 2014, 00:15 |
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#3 |
Senior Member
Vino
Join Date: Mar 2013
Posts: 130
Rep Power: 13 |
Thanks for your answer. I forgot to mention that it is for Incompressible(AC). Here pressure is treated as explicit variable (p, u, v). I will try your suggestion. Thanks.
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