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             : // Navier-Stokes includes
      11             : #include "NSImposedVelocityBC.h"
      12             : #include "NS.h"
      13             : 
      14             : registerMooseObject("NavierStokesApp", NSImposedVelocityBC);
      15             : 
      16             : InputParameters
      17           0 : NSImposedVelocityBC::validParams()
      18             : {
      19           0 :   InputParameters params = NodalBC::validParams();
      20           0 :   params.addClassDescription("Impose Velocity BC.");
      21           0 :   params.addRequiredCoupledVar(NS::density, "density");
      22           0 :   params.addRequiredParam<Real>("desired_velocity", "");
      23           0 :   return params;
      24           0 : }
      25             : 
      26           0 : NSImposedVelocityBC::NSImposedVelocityBC(const InputParameters & parameters)
      27             :   : NodalBC(parameters),
      28           0 :     _rho(coupledValue(NS::density)),
      29           0 :     _desired_velocity(getParam<Real>("desired_velocity"))
      30             : {
      31           0 : }
      32             : 
      33             : Real
      34           0 : NSImposedVelocityBC::computeQpResidual()
      35             : {
      36             :   // Return the difference between the current momentum and the desired value
      37             :   // (rho*u) - rho*desired_velocity
      38           0 :   return _u[_qp] - (_rho[_qp] * _desired_velocity);
      39             : }