Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #pragma once
      11             : 
      12             : #include "NodalBCBase.h"
      13             : #include "MooseVariableInterface.h"
      14             : 
      15             : /**
      16             :  * Base class for deriving any boundary condition that works at nodes on vector variables
      17             :  */
      18             : class VectorNodalBC : public NodalBCBase, public MooseVariableInterface<RealVectorValue>
      19             : {
      20             : public:
      21             :   static InputParameters validParams();
      22             : 
      23             :   VectorNodalBC(const InputParameters & parameters);
      24             : 
      25             :   /**
      26             :    * Gets the variable this BC is active on
      27             :    * @return the variable
      28             :    */
      29      123705 :   virtual const VectorMooseVariable & variable() const override { return _var; }
      30             :   virtual void computeResidual() override;
      31             :   virtual void computeJacobian() override;
      32             :   virtual void computeOffDiagJacobian(unsigned int jvar) override;
      33             : 
      34             : protected:
      35             :   const VectorMooseVariable & _var;
      36             : 
      37             :   /// current node being processed
      38             :   const Node * const & _current_node;
      39             : 
      40             :   /// Value of the unknown variable this BC is acting on
      41             :   const RealVectorValue & _u;
      42             : 
      43             :   virtual RealVectorValue computeQpResidual() = 0;
      44             : 
      45             :   /**
      46             :    * The user can override this function to compute the "on-diagonal"
      47             :    * Jacobian contribution for this VectorNodalBC.  If not overriden,
      48             :    * returns (1, 1, 1).
      49             :    */
      50             :   virtual RealVectorValue computeQpJacobian();
      51             : 
      52             :   /**
      53             :    * This is the virtual that derived classes should override for
      54             :    * computing an off-diagonal jacobian component.
      55             :    */
      56             :   virtual Real computeQpOffDiagJacobian(unsigned int jvar);
      57             : };