[ansubru]

Good day Foamers!!

I have a rather trivial error. I wanted to add a pre-defined velocity vector source within the 'wall model' in

lagrangian/intermediate/submodels/Kinematic/CollisionModel/PairCollision/WallModel/WallSpringSliderDashpot

I need to introduce an extra source term to the total wall force p.f(). This term will be adding some new interactions (apart from collision and cohesion) to the wall interaction model. I have added the following lines of code to the 'original' script WallSpringSliderDashpot.C -

// Hard-coding vibrational wall
           
   scalar rho_wall = 8000; // Steel density in kg/m3
   scalar m_wall = (rho_wall*(3.14/6.0))*(p.d()*p.d()*p.d());
   scalar Ux = 0;
   scalar Uy = 1;
   scalar Uz = 0;
   v_w = vector(Ux, Uy, Uz); // Wall vib source direction and magnitude
   
   vector f_vib = (p.mass()*p.U()) - (m_wall*v_w);

   p.f() += f_vib; // adding the new vib source

My definition of 'v_w' is not being accepted by the compiler, and I get the following error -

In file included from lnInclude/WallSpringSliderDashpot.H:179:0,
                 from lnInclude/makeParcelCollisionModels.H:36,
                 from parcels/derived/basicKinematicCollidingParcel/makeBasicKinematicCollidingParcelSubmodels.C:34:
lnInclude/WallSpringSliderDashpot.C: In member function ‘void Foam::WallSpringSliderDashpot<CloudType>::evaluateWall(typename CloudType::parcelType&, const point&, const Foam::WallSiteData<Foam::Vector<double> >&, Foam::scalar, Foam::scalar, bool) const’:
lnInclude/WallSpringSliderDashpot.C:163:4: error: ‘v_w’ was not declared in this scope
make: *** [Make/linux64GccDPDebug/makeBasicKinematicCollidingParcelSubmodels.o] Error 1

Is there an alternate way to define 'v_w' so that it falls within the scope of the compiler??

Thanks in advance

BR

ansubru

[ansubru]

Hi Again!!

That was a rather lame error -

I figured out the solution,

using -

vector v_w = vector(Ux, Uy, Uz);

My issue is solved.. ..

ansubru