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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 : #include "FluidFreeSurfaceBC.h" 11 : 12 : registerMooseObject("FsiApp", FluidFreeSurfaceBC); 13 : 14 : InputParameters 15 41 : FluidFreeSurfaceBC::validParams() 16 : { 17 41 : InputParameters params = IntegratedBC::validParams(); 18 41 : params.addClassDescription("Applies a mixed Dirichlet-Neumann BC on the fluid surface."); 19 123 : params.addRangeCheckedParam<Real>( 20 82 : "alpha", 0.1, "alpha>0", "Inverse of the acceleration due to gravity."); 21 41 : return params; 22 0 : } 23 : 24 22 : FluidFreeSurfaceBC::FluidFreeSurfaceBC(const InputParameters & parameters) 25 : : IntegratedBC(parameters), 26 22 : _alpha(getParam<Real>("alpha")), 27 22 : _u_dotdot(dotDot()), 28 44 : _du_dotdot_du(dotDotDu()) 29 : { 30 22 : } 31 : 32 : Real 33 5198400 : FluidFreeSurfaceBC::computeQpResidual() 34 : { 35 5198400 : return _test[_i][_qp] * _alpha * _u_dotdot[_qp]; 36 : } 37 : 38 : Real 39 20793600 : FluidFreeSurfaceBC::computeQpJacobian() 40 : { 41 20793600 : return _test[_i][_qp] * _alpha * _du_dotdot_du[_qp] * _phi[_j][_qp]; 42 : }