Laplacian Help

physics1 · August 27, 2012, 10:34

I'm trying to solve the equation ∇⋅n∇V- ∇⋅n∇E_0=0 where n is a density V is the electric Potential and E_0 = (v x B)⋅x. Both E_0 and V are defined as volScalarFields but when I try to input it as laplacian(n, V - E_0) is gives me
error: no matching function for call to 'laplacian(Foam::volScalarField&, Foam::tmp<Foam::GeometricField<double Foam::fvPatchField, Foam::volMesh> >)'

akidess · August 28, 2012, 01:45

The code is complaining about you passing a tmp<> object. This results from 'V-E0'. You need to precompute V-E and then solve.

- Anton

August 27, 2012, 10:34	Laplacian Help	#1
physics1 New Member Join Date: Jul 2012 Posts: 13 Rep Power: 13	I'm trying to solve the equation ∇⋅n∇V- ∇⋅n∇E_0=0 where n is a density V is the electric Potential and E_0 = (v x B)⋅x. Both E_0 and V are defined as volScalarFields but when I try to input it as laplacian(n, V - E_0) is gives me error: no matching function for call to 'laplacian(Foam::volScalarField&, Foam::tmp<Foam::GeometricField<double Foam::fvPatchField, Foam::volMesh> >)'

August 28, 2012, 01:45		#2
akidess Senior Member Anton Kidess Join Date: May 2009 Location: Germany Posts: 1,377 Rep Power: 29	The code is complaining about you passing a tmp<> object. This results from 'V-E0'. You need to precompute V-E and then solve. - Anton __________________ On twitter @akidTwit Spend as much time formulating your questions as you expect people to spend on their answer.

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