36 #include "libmesh/quadrature.h"
71 #ifdef GRINS_USE_GRVY_TIMERS
72 this->_timer->BeginTimer(
"SpalartAllmarasSPGSMStabilization::element_time_derivative");
77 libMesh::Elem &elem_pointer = context.get_elem();
80 const unsigned int n_nu_dofs = context.get_dof_indices(this->_turbulence_vars.nu_var()).size();
83 const std::vector<libMesh::Real> &JxW =
84 context.get_element_fe(this->_turbulence_vars.nu_var())->get_JxW();
88 const std::vector<std::vector<libMesh::RealGradient> >& nu_gradphi =
89 context.get_element_fe(this->_turbulence_vars.nu_var())->get_dphi();
97 libMesh::DenseSubVector<libMesh::Number> &Fnu = context.get_elem_residual(this->_turbulence_vars.nu_var());
99 libMesh::FEBase* fe = context.get_element_fe(this->_turbulence_vars.nu_var());
101 unsigned int n_qpoints = context.get_element_qrule().n_points();
104 libMesh::AutoPtr< libMesh::DenseVector<libMesh::Real> > distance_qp;
107 distance_qp = this->distance_function->interpolate(&elem_pointer, context.get_element_qrule().get_points());
109 for (
unsigned int qp=0; qp != n_qpoints; qp++)
111 libMesh::Gradient grad_nu;
112 grad_nu = context.interior_gradient(this->_turbulence_vars.nu_var(), qp);
114 libMesh::Real jac = JxW[qp];
117 libMesh::Real _mu_qp = this->_mu(context, qp);
125 u = context.interior_value(this->_flow_vars.u_var(), qp);
126 v = context.interior_value(this->_flow_vars.v_var(), qp);
128 libMesh::NumberVectorValue U(u,v);
130 U(2) = context.interior_value(this->_flow_vars.w_var(), qp);
134 libMesh::RealGradient g = this->_stab_helper.compute_g( fe, context, qp );
135 libMesh::RealTensor G = this->_stab_helper.compute_G( fe, context, qp );
137 libMesh::Real tau_spalart = this->_stab_helper.compute_tau_spalart( context, qp, g, G, this->_rho, U, _mu_qp, this->_is_steady );
139 libMesh::Number RM_spalart = this->_stab_helper.compute_res_spalart_steady( context, qp, this->_rho, _mu_qp, (*distance_qp)(qp) );
141 for (
unsigned int i=0; i != n_nu_dofs; i++)
143 Fnu(i) += jac*( -tau_spalart*RM_spalart*this->_rho*(U*nu_gradphi[i][qp]) );
146 if( compute_jacobian )
148 libmesh_not_implemented();
153 #ifdef GRINS_USE_GRVY_TIMERS
154 this->_timer->EndTimer(
"SpalartAllmarasSPGSMStabilization::element_time_derivative");
165 #ifdef GRINS_USE_GRVY_TIMERS
166 this->_timer->BeginTimer(
"SpalartAllmarasSPGSMStabilization::mass_residual");
171 libMesh::Elem &elem_pointer = context.get_elem();
174 const unsigned int n_nu_dofs = context.get_dof_indices(this->_turbulence_vars.nu_var()).size();
177 const std::vector<libMesh::Real> &JxW =
178 context.get_element_fe(this->_turbulence_vars.nu_var())->get_JxW();
181 const std::vector<std::vector<libMesh::RealGradient> >& nu_gradphi =
182 context.get_element_fe(this->_turbulence_vars.nu_var())->get_dphi();
184 libMesh::DenseSubVector<libMesh::Number> &Fnu = context.get_elem_residual(this->_turbulence_vars.nu_var());
186 libMesh::FEBase* fe = context.get_element_fe(this->_turbulence_vars.nu_var());
188 unsigned int n_qpoints = context.get_element_qrule().n_points();
191 libMesh::AutoPtr< libMesh::DenseVector<libMesh::Real> > distance_qp;
194 distance_qp = this->distance_function->interpolate(&elem_pointer, context.get_element_qrule().get_points());
196 for (
unsigned int qp=0; qp != n_qpoints; qp++)
198 libMesh::RealGradient g = this->_stab_helper.compute_g( fe, context, qp );
199 libMesh::RealTensor G = this->_stab_helper.compute_G( fe, context, qp );
201 libMesh::RealGradient U( context.fixed_interior_value( this->_flow_vars.u_var(), qp ),
202 context.fixed_interior_value( this->_flow_vars.v_var(), qp ) );
204 libMesh::Real _mu_qp = this->_mu(context, qp);
206 if( this->_dim == 3 )
208 U(2) = context.fixed_interior_value( this->_flow_vars.w_var(), qp );
211 libMesh::Real tau_spalart = this->_stab_helper.compute_tau_spalart( context, qp, g, G, this->_rho, U, _mu_qp, this->_is_steady );
213 libMesh::Real RM_spalart = this->_stab_helper.compute_res_spalart_transient( context, qp, this->_rho );
215 for (
unsigned int i=0; i != n_nu_dofs; i++)
217 Fnu(i) += -JxW[qp]*tau_spalart*RM_spalart*this->_rho*(U*nu_gradphi[i][qp]);
220 if( compute_jacobian )
222 libmesh_not_implemented();
227 #ifdef GRINS_USE_GRVY_TIMERS
228 this->_timer->EndTimer(
"SpalartAllmarasSPGSMStabilization::mass_residual");
INSTANTIATE_TURBULENCE_MODELS_SUBCLASS(SpalartAllmarasSPGSMStabilization)
SpalartAllmarasSPGSMStabilization()
virtual void init_variables(libMesh::FEMSystem *system)
Initialize variables for this physics.
virtual void init_variables(libMesh::FEMSystem *system)
Initialize variables for this physics.
virtual void element_time_derivative(bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
Time dependent part(s) of physics for element interiors.
virtual void read_input_options(const GetPot &input)
Read options from GetPot input file. By default, nothing is read.
virtual ~SpalartAllmarasSPGSMStabilization()
virtual void mass_residual(bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
Mass matrix part(s) for element interiors. All boundary terms lie within the time_derivative part...