- **OpenFOAM Running, Solving & CFD**
(*http://www.cfd-online.com/Forums/openfoam-solving/*)

- - **Flow laminar and stationary of water in a pipe**
(*http://www.cfd-online.com/Forums/openfoam-solving/59772-flow-laminar-stationary-water-pipe.html*)

Hello everybody,
For academHello everybody,
For academic purposes, I try to carry out a model of flow laminar and stationary of water in a pipe. what should i use solver to solve my model, icoFoam, simpleFoam, turbFoam etc. And which modifications i have to do. beforehand thanks I apologize for my questions, I am self-taught in CFD |

I think the easiest way would I think the easiest way would be to use simpleFoam and change in constant/turbulenceProperties:
turbulenceModel laminar; Dragos |

Thanks
I try and later asThanks
I try and later ask questions |

Hi
Thanks in advance
wheHi
Thanks in advance when i will do the model simple foam , i have some questions: What i have put in the control dict, respect the time: starTime, endTime and deltaT, if the model is stady-state? What value of K, epsilon, R nuTilda, i have to use at the walls, the in and out, so i do the model with the wedge condictions, about that only there is one wall and one inlet and autlet. what value i have to do in the dict turbulenceProperties aside the laminar in the turbulenceModel? I apologize for my questions, I am self-taught in CFD Manuel |

deltaT is not used in any of tdeltaT is not used in any of the equations. The time is purely an iteration counter so set e.g.
deltaT = 1 startTime = 0 endTime = number_of_wanted_iterations in turbulenceProperties set 'turbulence' to off. The choice of K,eps,R becomes irrelevant since they are not used in any calculation (they probably are not read as well) |

All the time variable names inAll the time variable names in the controlDict will represent instead the iteration number.
Since you don't solve a turbulent flow, you don't need to specify anything for k, epsilon, R, nuTilda, because they are not computed; just remove those files from the time directory. Dragos |

hi
I am trying to model simphi
I am trying to model simple laminar pipe flow in both openfoam and ansys cfx. I have completed the simulation however to get the same answer on openfoam as i do in cfx i have to do over three times the number of iterations. is there anything i can do with the solver settings to speed this up? they are all left at there default settings. I am using simplefoam with the turbulence turned off and is it possible to graph the convergence of the results through each iteration? Thanks Liam |

All times are GMT -4. The time now is 20:42. |