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February 26, 2013, 05:29 |
Pressure boundary condition
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#1 |
Senior Member
Join Date: May 2012
Posts: 546
Rep Power: 15 |
Hi,
So I was wondering about the pressure boundary condition implementation. I have a cartesian system with a curved boundary. Should I use normal derivative when approximating the pressure at walls or should I use the gradient? Most textbooks seem to favor the normal derivative, but they do not explain why. I use the method explained in Ferziger and Peric, 3rd ed. p.169. to create a poisson equation for pressure. Any thoughts or comments? |
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February 26, 2013, 06:07 |
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#2 |
Senior Member
Lefteris
Join Date: Oct 2011
Location: UK
Posts: 337
Rep Power: 15 |
Study pages 247-252 and 254-259. I had found them very useful in my study
I think, actually, it's better to study Chapter 8 that deals with complex geometries.
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Lefteris |
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