PressureDrop.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 "SideIntegralPostprocessor.h"

class PressureDrop : public SideIntegralPostprocessor
{
public:
  static InputParameters validParams();

  PressureDrop(const InputParameters & parameters);

  virtual Real computeQpIntegral() override { mooseError("Not implemented"); };

  virtual void initialize() override;
  virtual void meshChanged() override;
  virtual void execute() override;
  virtual void threadJoin(const UserObject & y) override;
  virtual void finalize() override;
  virtual Real getValue() const override;

protected:
  Real computeFaceInfoWeightedPressureIntegral(const FaceInfo * fi) const;
  Real computeFaceInfoWeightIntegral(const FaceInfo * fi) const;

  Real computeQpWeightedPressureIntegral() const;
  Real computeQpWeightIntegral() const;

  const Moose::Functor<Real> & _pressure;
  const Moose::Functor<RealVectorValue> * const _weighting_functor;
  Moose::FV::InterpMethod _weight_interp_method;
  std::vector<BoundaryID> _upstream_boundaries;
  std::vector<BoundaryID> _downstream_boundaries;
  Real _weighted_pressure_upstream;
  Real _weighted_pressure_downstream;
  Real _weight_upstream;
  Real _weight_downstream;
};