Dimensions !
 

Hi everybody,

Please Please, i need to stop all these "dimensions stuff", they are turning me crazy!!!
because my equation is so complicated, and i need to solve it without any dimensions even for the Ueqn and P and correction i mean for all
I mean even for icoFoam forexample, so How to switch OFF all dimensions
in my application solver, and not in the all root openfoam directories.

Thanks a lot

T.D.

Do you have access to OpenFOAM-1.x.x/etc/controlDict? If so, find the dimensionSet entry in DebugSwitches and set it to 0.

Better yet, are you writing your own solver? If so, start with:
Hopefully that works.

In my experience, turning off the dimensional check is not smart. It often saves you from making obvious mistakes and finds almost all typos in complicated equations.

You are coding something complex: it is exactly when you need automatic checks like these :-)

Of course, just my two cents ;-)

Thanks
 

Hi alberto,
finally i let it on, and you are right i descovered many mistakes and solved them, thanks,

i have a question for you please

In the Ico Foam solver, how can i change "nu" to be a function of a scalarField knowing that nu is a dimensioned scalar for example


if i need to solve
fvm::ddt(c)+fvc::div(phi,c) == etc.... (c is a volScalarField defined without any dimension)

but before it i have in the UEqn in IcoFoam "nu" and i need that my nu=(1-c/0.68)

help please


thanks

Define a volScalarField called nuEff after reading nu from transportProperties

Then use this field instead of nu in the UEqn, and update nuEff according to your law.