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- - **Flow through porous media**
(*https://www.cfd-online.com/Forums/openfoam-programming-development/77591-flow-through-porous-media.html*)

Flow through porous mediaHello everybody,
I'm a newbie in OpenFOAM and have some problems with the implementation in OpenFOAM. As you can see in the title I'm examing flow through porous media using a new approach. Similar to the Darcy-Forchheimer-Equation I want to add a new term to rhs of the incompressible Navier-Stokes-Equation. As a basis I use the simple-solver in OpenFOAM. Now I'd like to change the implemented differential equation. The rhs looks in x-direction as follows: ... = dp/dx - a* u_x - b* (u_x)² .( a,b - scalar values) I tried a lot to implement it. But certainly I don't know the right commands. Can anybody help me? Many thanks in advance! :) |

Hi marango,
you don't have to do anything on your own. Please have a look on rhoPorousSimpleFoam and its tutorials. This is a compressible solver, but you can use nearly the same commands for incompressible solvers. Regards, Stefan |

Thanks, Stefan, for your instant answer.
I already used the rhoPorousSimpleFoam-solver and implemented an incompressible version of this solver. Unfortunately the results were completely wrong. So I use a new approach, which also changes the lhs of the NSE. This is working right, but only the rhs makes problems. I also considered to use some commands from rhoPorousSimpleFoam, but either I couldn't find out what this command actually does or the mathematical background doesn't suite to my approach. |

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