[DaChris]

Hi,

I want to test a new curvature model by using InterFoam. When I try to compile the following code I get an error, but I don't know how to fix it. I hope, someone can help me.

//Cell gradient of gamma
    volVectorField gradGamma = fvc::grad(gamma);
    // Interpolated face-gradient of gamma
    
    surfaceScalarField phiGradGamma = fvc::interpolate(gradGamma)& mesh.Sf();
     
    //curvature  
    surfaceScalarField kappa =     ((1) / mag(gradGamma))
                    * (((gradGamma)/(mag(gradGamma))) 
                    * fvc::grad(mag(gradGamma)) 
      //line.29=>              - fvc::div(phiGradGamma));

And this is the first error:

curvature.H:29: error: conversion from ‘Foam::tmp<Foam::GeometricField<Foam::Tensor<doubl e>, Foam::fvPatchField, Foam::volMesh> >’ to non-scalar type ‘Foam::surfaceScalarField’ requested