[gtg627e]

Hello Forum,

In directory "applications/utilities/postProcessing/miscellaneous/liftDrag/liftDrag.C

I see the follwing call:

-------------------------------------------------------------

Info<< "Wall patch " << patchI
<< " named " << patches[patchI].name() << " : " << nl
<< "Reference area: " << Aref
<< " Reference length: " << Lref
<< " Drag coefficient: "
<< dragCoefficient
(
U,
p,
nu,
patches[patchI].name(),
Uav,
Aref

)

------------------------------------------------------------------

but in file

../src/postProcessing/incompressible/liftDrag/liftDrag.C

I see that I can also compute turbDragCoefficient.

Following the above example for the drag coefficient I can call:


scalar turbDragCoefficient
(
const autoPtr<foam::turbulencemodel>& turbulence,
const volVectorField& U,
const volScalarField& p,
const dimensionedScalar& mu,
const word& patchName,
const vector& Uinf,
const scalar& Aref
);

My questions are:

1. How do I specify the input const autoPtr<foam::turbulencemodel>& turbulence?

2. is mu the same as nu? It seems so in the first file I mentioned above.

Thank you again,

Alessandro