# PISO Algorithm

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 September 4, 2013, 05:26 PISO Algorithm #1 Senior Member   Join Date: Sep 2013 Location: Bangalore India Posts: 134 Rep Power: 6 Hi , I am a beginner in OpenFOAM and trying to understand IcoFoam Code. I have the following problems. What exactly the following code does all together ? for (int corr=0; corr

 September 4, 2013, 06:22 #2 Senior Member   Bernhard Join Date: Sep 2009 Location: Delft Posts: 790 Rep Power: 15 I would recommend to search for the thesis by Hrvoje Jasak, it contains the explanation of these algorithms, closely following the notation of OpenFOAM (or vice versa) sam.ho likes this.

 September 4, 2013, 06:25 #3 Senior Member   Join Date: Sep 2013 Location: Bangalore India Posts: 134 Rep Power: 6 Thank You

 September 5, 2013, 06:45 Doubt on piso #4 Senior Member   Join Date: Sep 2013 Location: Bangalore India Posts: 134 Rep Power: 6 Hi Could u please explain why solver takes reciprocal of diagonal elements of velocity matrix... code is volScalarField rAU(1.0/UEqn.A());? & whats the out put of the following code HbyA = rAU*UEqn.H(); ?

 October 11, 2013, 01:25 #5 New Member   eric Join Date: Nov 2010 Location: Vancouver, Canada Posts: 16 Rep Power: 8 I am also new to openfoam. My understanding is: HbyA is H divided by A which equals to UEqn.H()/UEqn.A()= UEqn.H()*1.0/UEqn.A() = rAU*UEqn.H()

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