Pre-processing

Originally Posted by seaspray

Pete,

It might have got easier in the more recent versions. In a nutshell, you mesh your volume with a suitable algorithm (tets or hexa i,j,k) and viscous layers are added as an "additional hypothesis" in the 3D algorithm settings. In there, you have the option of excluding some faces in your geometry, like inlet, outlet, but also areas where you don't care as much about flow modeling like in some multiphase flow computations.

Originally Posted by chris1980

I want to use the 'turbulentInlet' boundary condition. As far as I can see the use only inputs a fluctuation scale but what about the integral length scale or other appropiate scales because the flucation scale alone do not define a turublent inlet.

Ok I know it is anyway no real turbulent inlet because there is no turbulence strcuture etc.

Additionally, I was wondering what I have to set for k and epsilon at this turbulent boundary

Originally Posted by wyldckat

Greetings to all!

OK, only after 6 months did I manage to find enough time to run some tests of my own on a stable machine (mine isn't as stable ).
The results are now available here: https://github.com/wyldckat/wyldckat...nce_Analysis_2

The summary results:

1. If no file is written, it doesn't matter if it's configured to write in "binary" or "ascii".
2. Example

Originally Posted by Alhasan

Hey All,

How to use mapping fields function in openFOAM,

-say there are two different case two boxes, one big box and one small box with inlet on one side and outlet on the other side and all the other sides are walls. the small box is within the big box and it is in the right place in space.

-how do i even go about

Originally Posted by LUIS1717

Hi everyone,

I'm trying to program a solver and its need a volscalarfield that initially must be zero everywhere in the mesh and I don't want to read it from any initial condition or to write it down. Anyone know how to do it?

thanks in advance Luis