36 #include "libmesh/utility.h"
37 #include "libmesh/string_to_enum.h"
38 #include "libmesh/getpot.h"
39 #include "libmesh/fem_system.h"
40 #include "libmesh/quadrature.h"
48 _flow_vars(input,
PhysicsNaming::incompressible_navier_stokes()),
49 _press_var(input,
PhysicsNaming::incompressible_navier_stokes(), true ),
50 _temp_vars(input,
PhysicsNaming::axisymmetric_heat_transfer())
86 this->
_dim = system->get_mesh().mesh_dimension();
105 #ifdef GRINS_USE_GRVY_TIMERS
106 this->_timer->BeginTimer(
"AxisymmetricBoussinesqBuoyancy::element_time_derivative");
110 const unsigned int n_u_dofs = context.get_dof_indices(
_flow_vars.
u()).size();
111 const unsigned int n_T_dofs = context.get_dof_indices(
_temp_vars.
T()).size();
114 const std::vector<libMesh::Real> &JxW =
118 const std::vector<std::vector<libMesh::Real> >& vel_phi =
122 const std::vector<std::vector<libMesh::Real> >& T_phi =
126 const std::vector<libMesh::Point>& u_qpoint =
130 libMesh::DenseSubVector<libMesh::Number> &Fr = context.get_elem_residual(
_flow_vars.
u());
131 libMesh::DenseSubVector<libMesh::Number> &Fz = context.get_elem_residual(
_flow_vars.
v());
134 libMesh::DenseSubMatrix<libMesh::Number> &KrT = context.get_elem_jacobian(
_flow_vars.
u(),
_temp_vars.
T());
135 libMesh::DenseSubMatrix<libMesh::Number> &KzT = context.get_elem_jacobian(
_flow_vars.
v(),
_temp_vars.
T());
143 unsigned int n_qpoints = context.get_element_qrule().n_points();
145 for (
unsigned int qp=0; qp != n_qpoints; qp++)
147 const libMesh::Number r = u_qpoint[qp](0);
156 for (
unsigned int i=0; i != n_u_dofs; i++)
161 if (compute_jacobian && context.get_elem_solution_derivative())
163 for (
unsigned int j=0; j != n_T_dofs; j++)
165 const libMesh::Number val =
166 -
_rho*
_beta_T*vel_phi[i][qp]*T_phi[j][qp]*r*JxW[qp]
167 * context.get_elem_solution_derivative();
168 KrT(i,j) += val*
_g(0);
169 KzT(i,j) += val*
_g(1);
176 #ifdef GRINS_USE_GRVY_TIMERS
177 this->_timer->EndTimer(
"AxisymmetricBoussinesqBuoyancy::element_time_derivative");
virtual void set_parameter(libMesh::Number ¶m_variable, const GetPot &input, const std::string ¶m_name, libMesh::Number param_default)
Each subclass can simultaneously read a parameter value from.
virtual void init(libMesh::FEMSystem *system)
Add variables to the system.
PrimitiveTempFEVariables _temp_vars
VelocityFEVariables _flow_vars
Physics abstract base class. Defines API for physics to be added to MultiphysicsSystem.
static std::string temperature_section()
static PhysicsName axisymmetric_boussinesq_buoyancy()
virtual void init(libMesh::FEMSystem *system)
Add variables to the system.
static void check_and_register_variable(const std::string &var_name, const FEVariablesBase &variable)
First check if var_name is registered and then register.
void read_input_options(const GetPot &input)
Read options from GetPot input file.
PressureFEVariable _press_var
virtual void init_context(AssemblyContext &context)
Initialize context for added physics variables.
virtual void element_time_derivative(bool compute_jacobian, AssemblyContext &context, CachedValues &cache)
Source term contribution for AxisymmetricBoussinesqBuoyancy.
void register_variables()
static std::string velocity_section()
static std::string pressure_section()
virtual void init_variables(libMesh::FEMSystem *system)
Initialization of AxisymmetricBoussinesqBuoyancy variables.
libMesh::Point _g
Gravitational vector.
libMesh::Number _T_ref
reference temperature
libMesh::Number _rho
density
AxisymmetricBoussinesqBuoyancy()
libMesh::Number _beta_T
coefficient of thermal expansion
unsigned int _dim
Physical dimension of problem.