- **OpenFOAM**
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- - **Can anyone give me a introduction of the rhoPimpleFoam solvers?**
(*http://www.cfd-online.com/Forums/openfoam/110861-can-anyone-give-me-introduction-rhopimplefoam-solvers.html*)

Can anyone give me a introduction of the rhoPimpleFoam solvers?Hi foamers,
My tutor asked me to simulate a case using the rhoPimpleFoam solver. However, I am not familiar with it. What's more, I don't know what the LES oneEqEddy model exactly is. Can anyone help me to give me some hints? Bests, Sunxing |

Hi,
The rhoPimpleFoam is transient solver for laminar or turbulent flow of compressible fluids using the flexible PIMPLE (PISO-SIMPLE) algorithm. The oneEqEddy model is one of the LES turbulence models implemented in OpenFOAM and you can find the related information in the following document: http://www.tfd.chalmers.se/~hani/kur...jectReport.pdf Best regards, fumiya |

Quote:
Hi fumiya, Thanks for your reply. And it is very helpful for me. Regards Sunxing |

2 Attachment(s)
Hi Funiya,
First thank you for your anser my thread. Now I have a new problem, that you may know how to deal with. I have simulated a 2D flot film cooling case using pisoFoam(modified by adding temperature) instead of rhoPimpleFoam(my tutor suggested to use this solver, however the inlet velocity was quite low, so I didn't choose it). Then I performed the case with three different models: Launder Shama k-εmodel(RANS), Smagorinsky model(LES) and k-equation eddy-viscosity model(LES). After analysing the reslut, I find two problem: 1, the temperature filed doesn't have an aggrement with the experimential data. For this point I want to know what leads to this. 2, I have a good result with the RNAS model in velocity and pressure. However the reslut using LES models is bad in velocity, especially that the velocity in the boundary layer is quite low than that of the experimental data. So can you give me some suggestions? This the code that I modify the pisoFoam Code:
`//add these lines...` |

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