GapFluxModelBase.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 "ModularGapConductanceConstraint.h"
#include "InterfaceUserObjectBase.h"
#include "ADFunctorInterface.h"

class GapFluxModelBase : public InterfaceUserObjectBase, public ADFunctorInterface
{
public:
  static InputParameters validParams();

  GapFluxModelBase(const InputParameters & parameters);

  virtual ADReal
  computeFluxInternal(const ModularGapConductanceConstraint & mortar_constraint) const;

  virtual ADReal computeFlux() const = 0;

  virtual void finalize() final{};
  virtual void threadJoin(const UserObject &) final{};

protected:
  mutable unsigned int _qp;
  mutable ADReal _gap_width;
  mutable ADReal _surface_integration_factor;
  mutable ADReal _adjusted_length;
  mutable ADReal _normal_pressure;

  mutable Moose::ElemPointArg _secondary_point;
  mutable Moose::ElemPointArg _primary_point;
};