InterfaceNormalCurvatures.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

#include "Material.h"

class InterfaceNormalCurvatures : public Material
{
public:
  static InputParameters validParams();
  InterfaceNormalCurvatures(const InputParameters & params);

protected:
  virtual void computeQpProperties() override;

private:
  // -- order parameter ----------------------------------------
  const VariableValue & _eta;
  const VariableGradient & _grad_eta;
  const VariableSecond & _second_eta;

  // -- user parameters ----------------------------------------
  const Real _grad_threshold; 

  // -- material properties produced ---------------------------
  MaterialProperty<Real> & _kappa1; 
  MaterialProperty<Real> & _kappa2; 

  // -- diagnostics --------------------------------------------
  MaterialProperty<Real> & _kappa_mean;
};