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Old   February 16, 2008, 15:10
Default Hi, I'm trying to understand
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kar
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Kārlis Repsons
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Hi,
I'm trying to understand p-U coupling, but have no idea how to obtain initial PISO equation a_p U_p = H(U) - grad(p) from momentum PDE. Please, could you explain?

K.
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Old   February 17, 2008, 01:23
Default Here you find some note and re
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Alberto Passalacqua
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Here you find some note and reference:

http://openfoamwiki.net/index.php/Th...hm_in_OpenFOAM

http://openfoamwiki.net/index.php/Th...hm_in_OpenFOAM

Regards,
Alberto
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Old   February 17, 2008, 05:09
Default I was looking there already an
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Kārlis Repsons
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I was looking there already and that doesn't answers my question. I'd like to start with theoretical explanation rather than looking through code files!

Thanks to Harvoje for making his thesis publicly available and full of useful information, but I'm missing explanation how equation 3.136 is introduced.
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Old   February 17, 2008, 06:09
Default hi, this paper helped me a
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Stephan Gerber
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hi,

this paper helped me a lot, so maybe it's nice for you too?!:
Issa, "Solution of the implitly Discretised fluid flow equation by operator splittiing" in J. of Comp. Phys. No. 62, 1985, S. 40-65
there is another one about bouyant flow which might be interesting too..
br
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Old   February 17, 2008, 06:41
Default It probably would be nice, if
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Kārlis Repsons
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It probably would be nice, if I could access it online... Since most of these articles are not for free, most likely I can't.
But thank you anyway!
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Old   February 17, 2008, 06:53
Default Hi Karlis Send me an email.
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Hi Karlis

Send me an email. I have this paper.

Kind Regards
Jaswi
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Old   March 10, 2008, 10:29
Default another good paper on PISO is:
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another good paper on PISO is:

"The computation of compressible and incompressible recirculating flows by a non-interactive implicit scheme"

Journal of computational physics
1986
vol.62 pp66-82

it appears directly after the previously mentioned paper by ISSA, covers the application of piso.
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