FVBoundaryScalarLagrangeMultiplierConstraint.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 "FVFluxBC.h"

class FVBoundaryScalarLagrangeMultiplierConstraint : public FVFluxBC
{
public:
  static InputParameters validParams();

  FVBoundaryScalarLagrangeMultiplierConstraint(const InputParameters & parameters);

  const MooseVariableScalar & lambdaVariable() const { return _lambda_var; }

protected:
  const PostprocessorValue & _phi0;

private:
  void computeResidual(const FaceInfo & fi) override final;
  void computeJacobian(const FaceInfo & fi) override final;

  const MooseVariableScalar & _lambda_var;

  const ADVariableValue & _lambda;
};