- **OpenFOAM Programming & Development**
(*http://www.cfd-online.com/Forums/openfoam-programming-development/*)

- - **implementing k-w to twoPhaseEulerFoam**
(*http://www.cfd-online.com/Forums/openfoam-programming-development/96228-implementing-k-w-twophaseeulerfoam.html*)

implementing k-w to twoPhaseEulerFoamHello Foamers,
right now I try to implement the k-w-model into the twoPhaseEulerFoam solver by replacing the kEpsilon.H by my own one. Some questions came up, I cannot solve by myself: 1. In the solver the continuous phase turbulent viscosity is given by nutb = sqrt(k)/epsilon instead of sqr(k)/epsilon. Even though the units should not fit, they do. If I replace them by nutb = k/omega, the solver answers after compiling & running a testcase: Calculating field nuEffa LHS and RHS of + have different dimensions dimensions : [0 0 1 0 0 0 0] + [0 2 -1 0 0 0 0] (nuEffa = sqrt(Ct)*nutb + nub) What did I do wrong? 2. In the original k-w model for one phase I can find the term fvm::Sp(fvc::div(phi_),omega_) This part I cannot identifiy in the equation for the k-w model. To me it seems this is an additional source? Where does it come from? Do I have to include it to my code? 3. In the solver there is a calculation for the tensor G, which is done if (yPlus > 11.6) Can I replace this calculation with the calculation of the one-phase solver and keep the if? Or do I have to delete it? Thanks for your time & help, |

All times are GMT -4. The time now is 16:01. |