How to use y_ as dimensionless argument?
 

Hello,

I want to extend the function to calculate nut_ by multiplication with 0.1*tanh(pow((0.003*y_),6)).

nut_ = ((existing function)*(0.1*tanh(pow((0.003*y_),6))));

Compilation works fine but when I use the new turbulence model, I get an error:
[0] --> FOAM FATAL ERROR:
[0] Argument of trancendental function not dimensionless
[0]
[0] From function trans(const dimensionSet&)
[0] in file dimensionSet/dimensionSet.C at line 430.
[0]
FOAM parallel run aborting
...

I assume y_ is not a dimensionless argument for tanh().

How can I deal with that?

Klaus

Hi,

You can do something like:

Have you tried y_.value()?