[P]arallel [Hi]gh-order [Li]brary for [P]DEs  Latest
Parallel High-Order Library for PDEs through hp-adaptive Discontinuous Galerkin methods
Public Types | Public Member Functions | Private Types | Private Member Functions | Private Attributes | List of all members
PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType > Class Template Reference

#include <lift_drag.hpp>

Inheritance diagram for PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >:
Collaboration diagram for PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >:

Public Types

enum  Functional_types { lift, drag }
 Switch between lift and drag functional types.
 

Public Member Functions

 LiftDragFunctional (std::shared_ptr< DGBase< dim, real, MeshType >> dg_input, const Functional_types functional_type)
 Constructor.
 
real evaluate_functional (const bool compute_dIdW=false, const bool compute_dIdX=false, const bool compute_d2I=false) override
 Destructor.
 
template<typename real2 >
real2 evaluate_boundary_integrand (const PHiLiP::Physics::PhysicsBase< dim, nstate, real2 > &physics, const unsigned int boundary_id, const dealii::Point< dim, real2 > &, const dealii::Tensor< 1, dim, real2 > &normal, const std::array< real2, nstate > &soln_at_q, const std::array< dealii::Tensor< 1, dim, real2 >, nstate > &) const
 Virtual function for computation of cell boundary functional term. More...
 
virtual real evaluate_boundary_integrand (const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &physics, const unsigned int boundary_id, const dealii::Point< dim, real > &phys_coord, const dealii::Tensor< 1, dim, real > &normal, const std::array< real, nstate > &soln_at_q, const std::array< dealii::Tensor< 1, dim, real >, nstate > &soln_grad_at_q) const override
 Virtual function for computation of cell boundary functional term. More...
 
virtual FadFadType evaluate_boundary_integrand (const PHiLiP::Physics::PhysicsBase< dim, nstate, FadFadType > &physics, const unsigned int boundary_id, const dealii::Point< dim, FadFadType > &phys_coord, const dealii::Tensor< 1, dim, FadFadType > &normal, const std::array< FadFadType, nstate > &soln_at_q, const std::array< dealii::Tensor< 1, dim, FadFadType >, nstate > &soln_grad_at_q) const override
 Virtual function for Sacado computation of cell boundary functional term and derivatives. More...
 
virtual real evaluate_volume_integrand (const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &, const dealii::Point< dim, real > &, const std::array< real, nstate > &, const std::array< dealii::Tensor< 1, dim, real >, nstate > &) const
 Virtual function for computation of cell volume functional term. More...
 
virtual FadFadType evaluate_volume_integrand (const PHiLiP::Physics::PhysicsBase< dim, nstate, FadFadType > &, const dealii::Point< dim, FadFadType > &, const std::array< FadFadType, nstate > &, const std::array< dealii::Tensor< 1, dim, FadFadType >, nstate > &) const
 Virtual function for Sacado computation of cell volume functional term and derivatives. More...
 
- Public Member Functions inherited from PHiLiP::Functional< dim, nstate, real, MeshType >
virtual ~Functional ()=default
 Destructor.
 
 Functional (std::shared_ptr< PHiLiP::DGBase< dim, real, MeshType >> _dg, const bool _uses_solution_values=true, const bool _uses_solution_gradient=true)
 
 Functional (std::shared_ptr< PHiLiP::DGBase< dim, real, MeshType >> _dg, std::shared_ptr< PHiLiP::Physics::PhysicsBase< dim, nstate, Sacado::Fad::DFad< Sacado::Fad::DFad< real >> >> _physics_fad_fad, const bool _uses_solution_values=true, const bool _uses_solution_gradient=true)
 
void set_state (const dealii::LinearAlgebra::distributed::Vector< real > &solution_set)
 
void set_geom (const dealii::LinearAlgebra::distributed::Vector< real > &volume_nodes_set)
 
dealii::LinearAlgebra::distributed::Vector< real > evaluate_dIdw_finiteDifferences (DGBase< dim, real, MeshType > &dg, const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &physics, const double stepsize)
 
dealii::LinearAlgebra::distributed::Vector< real > evaluate_dIdX_finiteDifferences (DGBase< dim, real, MeshType > &dg, const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &physics, const double stepsize)
 

Private Types

using FadType = Sacado::Fad::DFad< real >
 Sacado AD type for first derivatives.
 
using FadFadType = Sacado::Fad::DFad< FadType >
 Sacado AD type that allows 2nd derivatives.
 

Private Member Functions

double initialize_force_dimensionalization_factor ()
 Compute force dimensionalization factor.
 
dealii::Tensor< 2, dim, double > initialize_rotation_matrix (const double angle_of_attack)
 Initialize rotation matrix based on given angle of attack.
 
dealii::Tensor< 1, dim, double > initialize_lift_vector (const dealii::Tensor< 2, dim, double > &rotation_matrix)
 Initialize lift vector with given rotation matrix based on angle of attack. More...
 
dealii::Tensor< 1, dim, double > initialize_drag_vector (const dealii::Tensor< 2, dim, double > &rotation_matrix)
 Initialize drag vector with given rotation matrix based on angle of attack. More...
 

Private Attributes

const Functional_types functional_type
 Switches between lift and drag.
 
const Physics::Euler< dim, dim+2, FadFadType > & euler_fad_fad
 Casts DG's physics into an Euler physics reference.
 
const double angle_of_attack
 Angle of attack retrieved from euler_fad_fad.
 
const dealii::Tensor< 2, dim, double > rotation_matrix
 Rotation matrix based on angle of attack.
 
const dealii::Tensor< 1, dim, double > lift_vector
 Lift force scaling based on the rotation matrix applied on a [0 1]^T vector. Assumes that the lift is the force in the positive y-direction.
 
const dealii::Tensor< 1, dim, double > drag_vector
 Drag force scaling based on the rotation matrix applied on a [1 0]^T vector. Assumes that the drag is the force in the positive x-direction.
 
dealii::Tensor< 1, dim, double > force_vector
 Used force scaling vector depending whether this functional represents lift or drag.
 
const double force_dimensionalization_factor
 Pressure induced drag is given by. More...
 

Additional Inherited Members

- Public Attributes inherited from PHiLiP::Functional< dim, nstate, real, MeshType >
std::shared_ptr< DGBase< dim, real, MeshType > > dg
 Smart pointer to DGBase.
 
real current_functional_value
 Store the functional value from the last time evaluate_functional() was called.
 
dealii::LinearAlgebra::distributed::Vector< real > dIdw
 Vector for storing the derivatives with respect to each solution DoF.
 
dealii::LinearAlgebra::distributed::Vector< real > dIdX
 Vector for storing the derivatives with respect to each grid DoF.
 
std::shared_ptr< dealii::TrilinosWrappers::SparseMatrix > d2IdWdW
 Sparse matrix for storing the functional partial second derivatives.
 
std::shared_ptr< dealii::TrilinosWrappers::SparseMatrix > d2IdWdX
 Sparse matrix for storing the functional partial second derivatives.
 
std::shared_ptr< dealii::TrilinosWrappers::SparseMatrix > d2IdXdX
 Sparse matrix for storing the functional partial second derivatives.
 
- Protected Member Functions inherited from PHiLiP::Functional< dim, nstate, real, MeshType >
void allocate_derivatives (const bool compute_dIdW, const bool compute_dIdX, const bool compute_d2I)
 Allocate and setup the derivative vectors/matrices. More...
 
void allocate_dIdX (dealii::LinearAlgebra::distributed::Vector< real > &dIdX) const
 Allocate and setup the derivative dIdX vector. More...
 
void set_derivatives (const bool compute_dIdW, const bool compute_dIdX, const bool compute_d2I, const Sacado::Fad::DFad< Sacado::Fad::DFad< real >> volume_local_sum, std::vector< dealii::types::global_dof_index > cell_soln_dofs_indices, std::vector< dealii::types::global_dof_index > cell_metric_dofs_indices)
 Set the derivative vectors/matrices. More...
 
void need_compute (bool &compute_value, bool &compute_dIdW, bool &compute_dIdX, bool &compute_d2I)
 Checks which derivatives actually need to be recomputed. More...
 
template<typename real2 >
real2 evaluate_volume_cell_functional (const Physics::PhysicsBase< dim, nstate, real2 > &physics, const std::vector< real2 > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< real2 > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const dealii::Quadrature< dim > &volume_quadrature) const
 Templated function to evaluate a cell's volume functional.
 
virtual real evaluate_volume_cell_functional (const Physics::PhysicsBase< dim, nstate, real > &physics, const std::vector< real > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< real > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const dealii::Quadrature< dim > &volume_quadrature) const
 Corresponding real function to evaluate a cell's volume functional.
 
virtual Sacado::Fad::DFad< Sacado::Fad::DFad< real > > evaluate_volume_cell_functional (const Physics::PhysicsBase< dim, nstate, Sacado::Fad::DFad< Sacado::Fad::DFad< real >>> &physics_fad_fad, const std::vector< Sacado::Fad::DFad< Sacado::Fad::DFad< real >> > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< Sacado::Fad::DFad< Sacado::Fad::DFad< real >> > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const dealii::Quadrature< dim > &volume_quadrature) const
 Corresponding FadFadType function to evaluate a cell's volume functional.
 
template<typename real2 >
real2 evaluate_boundary_cell_functional (const Physics::PhysicsBase< dim, nstate, real2 > &physics, const unsigned int boundary_id, const std::vector< real2 > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< real2 > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const unsigned int face_number, const dealii::Quadrature< dim-1 > &face_quadrature) const
 Templated function to evaluate a cell's boundary functional. More...
 
virtual real evaluate_boundary_cell_functional (const Physics::PhysicsBase< dim, nstate, real > &physics, const unsigned int boundary_id, const std::vector< real > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< real > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const unsigned int face_number, const dealii::Quadrature< dim-1 > &face_quadrature) const
 Corresponding real function to evaluate a cell's boundary functional.
 
virtual Sacado::Fad::DFad< Sacado::Fad::DFad< real > > evaluate_boundary_cell_functional (const Physics::PhysicsBase< dim, nstate, Sacado::Fad::DFad< Sacado::Fad::DFad< real >>> &physics_fad_fad, const unsigned int boundary_id, const std::vector< Sacado::Fad::DFad< Sacado::Fad::DFad< real >> > &soln_coeff, const dealii::FESystem< dim > &fe_solution, const std::vector< Sacado::Fad::DFad< Sacado::Fad::DFad< real >> > &coords_coeff, const dealii::FESystem< dim > &fe_metric, const unsigned int face_number, const dealii::Quadrature< dim-1 > &face_quadrature) const
 Corresponding FadFadType function to evaluate a cell's boundary functional.
 
- Protected Attributes inherited from PHiLiP::Functional< dim, nstate, real, MeshType >
std::shared_ptr< Physics::PhysicsBase< dim, nstate, FadFadType > > physics_fad_fad
 Physics that should correspond to the one in DGBase.
 
const dealii::UpdateFlags volume_update_flags = dealii::update_values | dealii::update_gradients | dealii::update_quadrature_points | dealii::update_JxW_values
 Update flags needed at volume points.
 
const dealii::UpdateFlags face_update_flags = dealii::update_values | dealii::update_gradients | dealii::update_quadrature_points | dealii::update_JxW_values | dealii::update_normal_vectors
 Update flags needed at face points.
 
const bool uses_solution_values
 Will evaluate solution values at quadrature points.
 
const bool uses_solution_gradient
 Will evaluate solution gradient at quadrature points.
 
dealii::ConditionalOStream pcout
 Parallel std::cout that only outputs on mpi_rank==0.
 

Detailed Description

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
class PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >

Target boundary values. Simply zero out the default volume contribution.

Definition at line 16 of file lift_drag.hpp.

Member Function Documentation

◆ evaluate_boundary_integrand() [1/3]

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
template<typename real2 >
real2 PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::evaluate_boundary_integrand ( const PHiLiP::Physics::PhysicsBase< dim, nstate, real2 > &  physics,
const unsigned int  boundary_id,
const dealii::Point< dim, real2 > &  ,
const dealii::Tensor< 1, dim, real2 > &  normal,
const std::array< real2, nstate > &  soln_at_q,
const std::array< dealii::Tensor< 1, dim, real2 >, nstate > &   
) const
inline

Virtual function for computation of cell boundary functional term.

Used only in the computation of evaluate_function(). If not overriden returns 0.

Definition at line 92 of file lift_drag.hpp.

◆ evaluate_boundary_integrand() [2/3]

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
virtual real PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::evaluate_boundary_integrand ( const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &  physics,
const unsigned int  boundary_id,
const dealii::Point< dim, real > &  phys_coord,
const dealii::Tensor< 1, dim, real > &  normal,
const std::array< real, nstate > &  soln_at_q,
const std::array< dealii::Tensor< 1, dim, real >, nstate > &  soln_grad_at_q 
) const
inlineoverridevirtual

Virtual function for computation of cell boundary functional term.

Used only in the computation of evaluate_function(). If not overriden returns 0.

Reimplemented from PHiLiP::Functional< dim, nstate, real, MeshType >.

Definition at line 118 of file lift_drag.hpp.

◆ evaluate_boundary_integrand() [3/3]

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
virtual FadFadType PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::evaluate_boundary_integrand ( const PHiLiP::Physics::PhysicsBase< dim, nstate, FadFadType > &  physics,
const unsigned int  boundary_id,
const dealii::Point< dim, FadFadType > &  phys_coord,
const dealii::Tensor< 1, dim, FadFadType > &  normal,
const std::array< FadFadType, nstate > &  soln_at_q,
const std::array< dealii::Tensor< 1, dim, FadFadType >, nstate > &  soln_grad_at_q 
) const
inlineoverridevirtual

Virtual function for Sacado computation of cell boundary functional term and derivatives.

Used only in the computation of evaluate_dIdw(). If not overriden returns 0.

Reimplemented from PHiLiP::Functional< dim, nstate, real, MeshType >.

Definition at line 137 of file lift_drag.hpp.

◆ evaluate_volume_integrand() [1/2]

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
virtual real PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::evaluate_volume_integrand ( const PHiLiP::Physics::PhysicsBase< dim, nstate, real > &  ,
const dealii::Point< dim, real > &  ,
const std::array< real, nstate > &  ,
const std::array< dealii::Tensor< 1, dim, real >, nstate > &   
) const
inlinevirtual

Virtual function for computation of cell volume functional term.

Used only in the computation of evaluate_function(). If not overriden returns 0.

Reimplemented from PHiLiP::Functional< dim, nstate, real, MeshType >.

Definition at line 156 of file lift_drag.hpp.

◆ evaluate_volume_integrand() [2/2]

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
virtual FadFadType PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::evaluate_volume_integrand ( const PHiLiP::Physics::PhysicsBase< dim, nstate, FadFadType > &  ,
const dealii::Point< dim, FadFadType > &  ,
const std::array< FadFadType, nstate > &  ,
const std::array< dealii::Tensor< 1, dim, FadFadType >, nstate > &   
) const
inlinevirtual

Virtual function for Sacado computation of cell volume functional term and derivatives.

Used only in the computation of evaluate_dIdw(). If not overriden returns 0.

Reimplemented from PHiLiP::Functional< dim, nstate, real, MeshType >.

Definition at line 165 of file lift_drag.hpp.

◆ initialize_drag_vector()

template<int dim, int nstate, typename real , typename MeshType >
dealii::Tensor< 1, dim, double > PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::initialize_drag_vector ( const dealii::Tensor< 2, dim, double > &  rotation_matrix)
private

Initialize drag vector with given rotation matrix based on angle of attack.

Use convention that drag is in the positive x-direction.

Definition at line 85 of file lift_drag.cpp.

◆ initialize_lift_vector()

template<int dim, int nstate, typename real , typename MeshType >
dealii::Tensor< 1, dim, double > PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::initialize_lift_vector ( const dealii::Tensor< 2, dim, double > &  rotation_matrix)
private

Initialize lift vector with given rotation matrix based on angle of attack.

Use convention that lift is in the positive y-direction.

Definition at line 64 of file lift_drag.cpp.

Member Data Documentation

◆ force_dimensionalization_factor

template<int dim, int nstate, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
const double PHiLiP::LiftDragFunctional< dim, nstate, real, MeshType >::force_dimensionalization_factor
private

Pressure induced drag is given by.

\[ C_D = \frac{2}{L \rho_{\infty} V_{\infty}^2} \int_{S} p (\mathbf{n} \cdot \text{DragVector}) ds \]

\[ C_D = \text{force_dimensionalization_factor} \int_{S} p (\mathbf{n} \cdot \text{DragVector}) ds \]

Definition at line 61 of file lift_drag.hpp.

The documentation for this class was generated from the following files: