[Carmelo98]

Good morning to all,
I'm trying to set a simulation of a compressible turbulent flow, using the Smagorinsky turbulence model.
I'm not sure how to set boundary conditions for turbulence that means setting boundary conditions in the nut and alphat files.
I have already run a simulation where I set "calculated" for both patches and walls (see code below). I guess that turbulence model computes all the variables using the pressure, temperature and velocity fields, and no other boundary conditions are necessary. In the this simulation, I set slip boundary conditions for walls, so that no boundary layer is formed.
Now I would like to run another simulation with no slip conditon at walls to take into account the boundary layer.
I don't know if I can use the same boundary conditions (I guess yes for type pathe bounaries) or if boundary conditions must be modified, using a wall function. I found two wall functions for nut, named "nutWallFunction" and "nutUSpaldingWallFunction", but I don't know if they can be useful in my simulation.
Also, the mesh is quite fine but I don't know if I have to add some layers at the walls.
I hope you can help me.
Thank you for your time.
Best Regards.

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2312                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      nut;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [0 2 -1 0 0 0 0];

internalField   uniform 0;

boundaryField
{
    "(inlet|tank)"
    {
        type            calculated;
        value           uniform 0;
    }

    "(HP_wall|nozzle_wall|tank_wall)"
    {
        type            calculated;
        value           uniform 0;
    }
}

/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2312                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      alphat;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [1 -1 -1 0 0 0 0];

internalField   uniform 0;


boundaryField
{
    "(inlet|tank)"
    {
        type            calculated;
        value           uniform 0;
    }

    "(HP_wall|nozzle_wall|tank_wall)"
    {
        type            calculated;
        value           uniform 0;
    }
}

// ************************************************************************* //