Gravity.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* 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 "Kernel.h"
 
class Function;
class Gravity;
 
template <>
InputParameters validParams<Gravity>();
 
class Gravity : public Kernel
{
public:
  static InputParameters validParams();
 
  Gravity(const InputParameters & parameters);
 
protected:
  virtual Real computeQpResidual();
 
  const MaterialProperty<Real> & _density;
  const Real _value;
  const Function & _function;
 
  // _alpha parameter for HHT time integration scheme
  const Real _alpha;
};