34 #include "libmesh/quadrature.h"
35 #include "libmesh/boundary_info.h"
57 context.get_element_fe(this->_flow_vars.u_var())->get_xyz();
58 context.get_element_fe(this->_flow_vars.u_var())->get_phi();
69 #ifdef GRINS_USE_GRVY_TIMERS
70 this->_timer->BeginTimer(
"AveragedFan::element_time_derivative");
74 const std::vector<libMesh::Real> &JxW =
75 context.get_element_fe(this->_flow_vars.u_var())->get_JxW();
78 const std::vector<std::vector<libMesh::Real> >& u_phi =
79 context.get_element_fe(this->_flow_vars.u_var())->get_phi();
81 const std::vector<libMesh::Point>& u_qpoint =
82 context.get_element_fe(this->_flow_vars.u_var())->get_xyz();
85 const unsigned int n_u_dofs = context.get_dof_indices(this->_flow_vars.u_var()).size();
88 libMesh::DenseSubMatrix<libMesh::Number> &Kuu = context.get_elem_jacobian(this->_flow_vars.u_var(), this->_flow_vars.u_var());
89 libMesh::DenseSubMatrix<libMesh::Number> &Kuv = context.get_elem_jacobian(this->_flow_vars.u_var(), this->_flow_vars.v_var());
90 libMesh::DenseSubMatrix<libMesh::Number> &Kvu = context.get_elem_jacobian(this->_flow_vars.v_var(), this->_flow_vars.u_var());
91 libMesh::DenseSubMatrix<libMesh::Number> &Kvv = context.get_elem_jacobian(this->_flow_vars.v_var(), this->_flow_vars.v_var());
93 libMesh::DenseSubMatrix<libMesh::Number>* Kwu = NULL;
94 libMesh::DenseSubMatrix<libMesh::Number>* Kwv = NULL;
95 libMesh::DenseSubMatrix<libMesh::Number>* Kww = NULL;
96 libMesh::DenseSubMatrix<libMesh::Number>* Kuw = NULL;
97 libMesh::DenseSubMatrix<libMesh::Number>* Kvw = NULL;
99 libMesh::DenseSubVector<libMesh::Number> &Fu = context.get_elem_residual(this->_flow_vars.u_var());
100 libMesh::DenseSubVector<libMesh::Number> &Fv = context.get_elem_residual(this->_flow_vars.v_var());
101 libMesh::DenseSubVector<libMesh::Number>* Fw = NULL;
103 if( this->_dim == 3 )
105 Kuw = &context.get_elem_jacobian(this->_flow_vars.u_var(), this->_flow_vars.w_var());
106 Kvw = &context.get_elem_jacobian(this->_flow_vars.v_var(), this->_flow_vars.w_var());
108 Kwu = &context.get_elem_jacobian(this->_flow_vars.w_var(), this->_flow_vars.u_var());
109 Kwv = &context.get_elem_jacobian(this->_flow_vars.w_var(), this->_flow_vars.v_var());
110 Kww = &context.get_elem_jacobian(this->_flow_vars.w_var(), this->_flow_vars.w_var());
111 Fw = &context.get_elem_residual(this->_flow_vars.w_var());
114 unsigned int n_qpoints = context.get_element_qrule().n_points();
116 for (
unsigned int qp=0; qp != n_qpoints; qp++)
119 libMesh::Number u, v;
120 u = context.interior_value(this->_flow_vars.u_var(), qp);
121 v = context.interior_value(this->_flow_vars.v_var(), qp);
123 libMesh::NumberVectorValue U(u,v);
125 U(2) = context.interior_value(this->_flow_vars.w_var(), qp);
127 libMesh::NumberVectorValue F;
128 libMesh::NumberTensorValue dFdU;
129 libMesh::NumberTensorValue* dFdU_ptr =
130 compute_jacobian ? &dFdU : NULL;
131 if (!this->compute_force(u_qpoint[qp], context.time, U, F, dFdU_ptr))
134 libMesh::Real jac = JxW[qp];
136 for (
unsigned int i=0; i != n_u_dofs; i++)
138 const libMesh::Number jac_i = jac * u_phi[i][qp];
143 if( this->_dim == 3 )
144 (*Fw)(i) += F(2)*jac_i;
146 if( compute_jacobian )
148 for (
unsigned int j=0; j != n_u_dofs; j++)
150 const libMesh::Number jac_ij =
151 jac_i * context.get_elem_solution_derivative() *
153 Kuu(i,j) += jac_ij * dFdU(0,0);
154 Kuv(i,j) += jac_ij * dFdU(0,1);
155 Kvu(i,j) += jac_ij * dFdU(1,0);
156 Kvv(i,j) += jac_ij * dFdU(1,1);
158 if( this->_dim == 3 )
160 (*Kuw)(i,j) += jac_ij * dFdU(0,2);
161 (*Kvw)(i,j) += jac_ij * dFdU(1,2);
162 (*Kwu)(i,j) += jac_ij * dFdU(2,0);
163 (*Kwv)(i,j) += jac_ij * dFdU(2,1);
164 (*Kww)(i,j) += jac_ij * dFdU(2,2);
172 #ifdef GRINS_USE_GRVY_TIMERS
173 this->_timer->EndTimer(
"AveragedFan::element_time_derivative");
virtual void element_time_derivative(bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
Time dependent part(s) of physics for element interiors.
INSTANTIATE_INC_NS_SUBCLASS(AveragedFan)
virtual void init_context(AssemblyContext &context)
Initialize context for added physics variables.