Nektar++
Static Public Member Functions | Static Public Attributes | Protected Member Functions | List of all members
Nektar::APEUpwindSolver Class Reference

#include <APEUpwindSolver.h>

Inheritance diagram for Nektar::APEUpwindSolver:
[legend]

Static Public Member Functions

static RiemannSolverSharedPtr create (const LibUtilities::SessionReaderSharedPtr &pSession)
 

Static Public Attributes

static std::string solverName
 

Protected Member Functions

 APEUpwindSolver (const LibUtilities::SessionReaderSharedPtr &pSession)
 
void v_PointSolve (NekDouble pL, NekDouble rhoL, NekDouble uL, NekDouble vL, NekDouble wL, NekDouble pR, NekDouble rhoR, NekDouble uR, NekDouble vR, NekDouble wR, NekDouble c0sqL, NekDouble rho0L, NekDouble u0L, NekDouble v0L, NekDouble w0L, NekDouble c0sqR, NekDouble rho0R, NekDouble u0R, NekDouble v0R, NekDouble w0R, NekDouble &pF, NekDouble &rhoF, NekDouble &uF, NekDouble &vF, NekDouble &wF) override
 Upwind Riemann solver. More...
 
- Protected Member Functions inherited from Nektar::AcousticSolver
 AcousticSolver (const LibUtilities::SessionReaderSharedPtr &pSession)
 
void v_Solve (const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, Array< OneD, Array< OneD, NekDouble > > &flux) override
 
virtual void v_PointSolve (NekDouble pL, NekDouble rhoL, NekDouble uL, NekDouble vL, NekDouble wL, NekDouble pR, NekDouble rhoR, NekDouble uR, NekDouble vR, NekDouble wR, NekDouble c0sqL, NekDouble rho0L, NekDouble u0L, NekDouble v0L, NekDouble w0L, NekDouble c0sqR, NekDouble rho0R, NekDouble u0R, NekDouble v0R, NekDouble w0R, NekDouble &pF, NekDouble &rhoF, NekDouble &uF, NekDouble &vF, NekDouble &wF)=0
 
void GetRotBasefield (Array< OneD, Array< OneD, NekDouble > > &bfFwd, Array< OneD, Array< OneD, NekDouble > > &bfBwd)
 
- Protected Member Functions inherited from Nektar::SolverUtils::RiemannSolver
SOLVER_UTILS_EXPORT RiemannSolver ()
 
SOLVER_UTILS_EXPORT RiemannSolver (const LibUtilities::SessionReaderSharedPtr &pSession)
 
virtual SOLVER_UTILS_EXPORT ~RiemannSolver ()
 
virtual void v_Solve (const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, Array< OneD, Array< OneD, NekDouble > > &flux)=0
 
SOLVER_UTILS_EXPORT void GenerateRotationMatrices (const Array< OneD, const Array< OneD, NekDouble > > &normals)
 Generate rotation matrices for 3D expansions. More...
 
void FromToRotation (Array< OneD, const NekDouble > &from, Array< OneD, const NekDouble > &to, NekDouble *mat)
 A function for creating a rotation matrix that rotates a vector from into another vector to. More...
 
SOLVER_UTILS_EXPORT void rotateToNormal (const Array< OneD, const Array< OneD, NekDouble > > &inarray, const Array< OneD, const Array< OneD, NekDouble > > &normals, const Array< OneD, const Array< OneD, NekDouble > > &vecLocs, Array< OneD, Array< OneD, NekDouble > > &outarray)
 Rotate a vector field to trace normal. More...
 
SOLVER_UTILS_EXPORT void rotateFromNormal (const Array< OneD, const Array< OneD, NekDouble > > &inarray, const Array< OneD, const Array< OneD, NekDouble > > &normals, const Array< OneD, const Array< OneD, NekDouble > > &vecLocs, Array< OneD, Array< OneD, NekDouble > > &outarray)
 Rotate a vector field from trace normal. More...
 
SOLVER_UTILS_EXPORT bool CheckScalars (std::string name)
 Determine whether a scalar has been defined in m_scalars. More...
 
SOLVER_UTILS_EXPORT bool CheckVectors (std::string name)
 Determine whether a vector has been defined in m_vectors. More...
 
SOLVER_UTILS_EXPORT bool CheckParams (std::string name)
 Determine whether a parameter has been defined in m_params. More...
 
SOLVER_UTILS_EXPORT bool CheckAuxScal (std::string name)
 Determine whether a scalar has been defined in m_auxScal. More...
 
SOLVER_UTILS_EXPORT bool CheckAuxVec (std::string name)
 Determine whether a vector has been defined in m_auxVec. More...
 
virtual SOLVER_UTILS_EXPORT void v_CalcFluxJacobian (const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, const Array< OneD, const Array< OneD, NekDouble > > &normals, DNekBlkMatSharedPtr &FJac, DNekBlkMatSharedPtr &BJac)
 

Additional Inherited Members

- Public Member Functions inherited from Nektar::SolverUtils::RiemannSolver
SOLVER_UTILS_EXPORT void Solve (const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, Array< OneD, Array< OneD, NekDouble > > &flux)
 Perform the Riemann solve given the forwards and backwards spaces. More...
 
template<typename FuncPointerT , typename ObjectPointerT >
void SetScalar (std::string name, FuncPointerT func, ObjectPointerT obj)
 
void SetScalar (std::string name, RSScalarFuncType fp)
 
template<typename FuncPointerT , typename ObjectPointerT >
void SetVector (std::string name, FuncPointerT func, ObjectPointerT obj)
 
void SetVector (std::string name, RSVecFuncType fp)
 
template<typename FuncPointerT , typename ObjectPointerT >
void SetParam (std::string name, FuncPointerT func, ObjectPointerT obj)
 
void SetParam (std::string name, RSParamFuncType fp)
 
template<typename FuncPointerT , typename ObjectPointerT >
void SetAuxScal (std::string name, FuncPointerT func, ObjectPointerT obj)
 
template<typename FuncPointerT , typename ObjectPointerT >
void SetAuxVec (std::string name, FuncPointerT func, ObjectPointerT obj)
 
void SetAuxVec (std::string name, RSVecFuncType fp)
 
std::map< std::string, RSScalarFuncType > & GetScalars ()
 
std::map< std::string, RSVecFuncType > & GetVectors ()
 
std::map< std::string, RSParamFuncType > & GetParams ()
 
SOLVER_UTILS_EXPORT void CalcFluxJacobian (const int nDim, const Array< OneD, const Array< OneD, NekDouble > > &Fwd, const Array< OneD, const Array< OneD, NekDouble > > &Bwd, DNekBlkMatSharedPtr &FJac, DNekBlkMatSharedPtr &BJac)
 Calculate the flux jacobian of Fwd and Bwd. More...
 
- Public Attributes inherited from Nektar::SolverUtils::RiemannSolver
int m_spacedim
 
- Protected Attributes inherited from Nektar::SolverUtils::RiemannSolver
bool m_requiresRotation
 Indicates whether the Riemann solver requires a rotation to be applied to the velocity fields. More...
 
std::map< std::string, RSScalarFuncType > m_scalars
 Map of scalar function types. More...
 
std::map< std::string, RSVecFuncType > m_vectors
 Map of vector function types. More...
 
std::map< std::string, RSParamFuncType > m_params
 Map of parameter function types. More...
 
std::map< std::string, RSScalarFuncType > m_auxScal
 Map of auxiliary scalar function types. More...
 
std::map< std::string, RSVecFuncType > m_auxVec
 Map of auxiliary vector function types. More...
 
Array< OneD, Array< OneD, NekDouble > > m_rotMat
 Rotation matrices for each trace quadrature point. More...
 
Array< OneD, Array< OneD, Array< OneD, NekDouble > > > m_rotStorage
 Rotation storage. More...
 

Detailed Description

Definition at line 47 of file APEUpwindSolver.h.

Constructor & Destructor Documentation

◆ APEUpwindSolver()

Nektar::APEUpwindSolver::APEUpwindSolver ( const LibUtilities::SessionReaderSharedPtr &  pSession)
protected

Definition at line 48 of file APEUpwindSolver.cpp.

50 : AcousticSolver(pSession)
51{
52}
Nektar::AcousticSolver::AcousticSolver
AcousticSolver(const LibUtilities::SessionReaderSharedPtr &pSession)
Definition: RiemannSolvers/AcousticSolver.cpp:46

Referenced by create().

Member Function Documentation

◆ create()

static RiemannSolverSharedPtr Nektar::APEUpwindSolver::create ( const LibUtilities::SessionReaderSharedPtr &  pSession)
inlinestatic

Definition at line 50 of file APEUpwindSolver.h.

52 {
53 return RiemannSolverSharedPtr(new APEUpwindSolver(pSession));
54 }
Nektar::APEUpwindSolver::APEUpwindSolver
APEUpwindSolver(const LibUtilities::SessionReaderSharedPtr &pSession)
Definition: APEUpwindSolver.cpp:48
Nektar::SolverUtils::RiemannSolverSharedPtr
std::shared_ptr< RiemannSolver > RiemannSolverSharedPtr
A shared pointer to an EquationSystem object.
Definition: RiemannSolver.h:195

References APEUpwindSolver().

◆ v_PointSolve()

void Nektar::APEUpwindSolver::v_PointSolve ( NekDouble  pL,
NekDouble  rhoL,
NekDouble  uL,
NekDouble  vL,
NekDouble  wL,
NekDouble  pR,
NekDouble  rhoR,
NekDouble  uR,
NekDouble  vR,
NekDouble  wR,
NekDouble  c0sqL,
NekDouble  rho0L,
NekDouble  u0L,
NekDouble  v0L,
NekDouble  w0L,
NekDouble  c0sqR,
NekDouble  rho0R,
NekDouble  u0R,
NekDouble  v0R,
NekDouble  w0R,
NekDouble &  pF,
NekDouble &  rhoF,
NekDouble &  uF,
NekDouble &  vF,
NekDouble &  wF 
)
overrideprotectedvirtual

Upwind Riemann solver.

The fluxes are straight out of sympy, so lets just hope the compiler optimizes them for us.

Parameters
pLPerturbation pressure left state
rhoLPerturbation density left state
pRPerturbation pressure right state
rhoRPerturbation density right state
uLx perturbation velocity component left state
uRx perturbation velocity component right state
vLy perturbation velocity component left state
vRy perturbation velocity component right state
wLz perturbation velocity component left state
wRz perturbation velocity component right state
c0sqLBase pressure left state
c0sqRBase pressure right state
rho0LBase density left state
rho0RBase density right state
u0LBase x velocity component left state
u0RBase x velocity component right state
v0LBase y velocity component left state
v0RBase y velocity component right state
w0LBase z velocity component left state
w0RBase z velocity component right state
pFComputed Riemann flux for perturbation pressure
rhoFComputed Riemann flux for perturbation density
uFComputed Riemann flux for x perturbation velocity component
vFComputed Riemann flux for y perturbation velocity component
wFComputed Riemann flux for z perturbation velocity component

Implements Nektar::AcousticSolver.

Definition at line 86 of file APEUpwindSolver.cpp.

94{
95 // Speed of sound
96 NekDouble c0L = sqrt(c0sqL);
97 NekDouble c0R = sqrt(c0sqR);
98 NekDouble c0M = (c0L + c0R) / 2.0;
99
100 NekDouble u0M = (u0L + u0R) / 2.0;
101
102 pF = 0.0;
103 uF = 0.0;
104 vF = 0.0;
105 wF = 0.0;
106
107 // lambda_3
108 if (u0M - c0M > 0)
109 {
110 pF = pF + 0.5 * (c0L - u0L) *
111 (-rho0L * v0L * vL * (c0L * u0L + c0sqL) -
112 rho0L * w0L * wL * (c0L * u0L + c0sqL) +
113 (c0sqL - pow(u0L, 2)) * (rho0L * c0L * uL - pL)) /
114 (c0sqL - pow(u0L, 2));
115
116 uF = uF +
117 0.5 * (c0L - u0L) *
118 (rho0L * c0L * (c0L * u0L + c0sqL) * (v0L * vL + w0L * wL) -
119 rho0L * c0sqL * uL * (c0sqL - pow(u0L, 2)) +
120 c0L * pL * (c0sqL - pow(u0L, 2))) /
121 (rho0L * c0sqL * (c0sqL - pow(u0L, 2)));
122 }
123 else
124 {
125 pF = pF + 0.5 * (c0R - u0R) *
126 (-rho0R * v0R * vR * (c0R * u0R + c0sqR) -
127 rho0R * w0R * wR * (c0R * u0R + c0sqR) +
128 (c0sqR - pow(u0R, 2)) * (rho0R * c0R * uR - pR)) /
129 (c0sqR - pow(u0R, 2));
130
131 uF = uF +
132 0.5 * (c0R - u0R) *
133 (rho0R * c0R * (c0R * u0R + c0sqR) * (v0R * vR + w0R * wR) -
134 rho0R * c0sqR * uR * (c0sqR - pow(u0R, 2)) +
135 c0R * pR * (c0sqR - pow(u0R, 2))) /
136 (rho0R * c0sqR * (c0sqR - pow(u0R, 2)));
137 }
138
139 // lambda_4
140 if (u0M + c0M > 0)
141 {
142 pF = pF + 0.5 * (c0L + u0L) *
143 (-rho0L * v0L * vL * (c0L * u0L - c0sqL) -
144 rho0L * w0L * wL * (c0L * u0L - c0sqL) +
145 (c0sqL - pow(u0L, 2)) * (rho0L * c0L * uL + pL)) /
146 (c0sqL - pow(u0L, 2));
147
148 uF = uF +
149 0.5 * (c0L + u0L) *
150 (-rho0L * c0L * (c0L * u0L - c0sqL) * (v0L * vL + w0L * wL) +
151 rho0L * c0sqL * uL * (c0sqL - pow(u0L, 2)) +
152 c0L * pL * (c0sqL - pow(u0L, 2))) /
153 (rho0L * c0sqL * (c0sqL - pow(u0L, 2)));
154 }
155 else
156 {
157 pF = pF + 0.5 * (c0R + u0R) *
158 (-rho0R * v0R * vR * (c0R * u0R - c0sqR) -
159 rho0R * w0R * wR * (c0R * u0R - c0sqR) +
160 (c0sqR - pow(u0R, 2)) * (rho0R * c0R * uR + pR)) /
161 (c0sqR - pow(u0R, 2));
162
163 uF = uF +
164 0.5 * (c0R + u0R) *
165 (-rho0R * c0R * (c0R * u0R - c0sqR) * (v0R * vR + w0R * wR) +
166 rho0R * c0sqR * uR * (c0sqR - pow(u0R, 2)) +
167 c0R * pR * (c0sqR - pow(u0R, 2))) /
168 (rho0R * c0sqR * (c0sqR - pow(u0R, 2)));
169 }
170}
Nektar::NekDouble
double NekDouble
Definition: NektarUnivTypeDefs.hpp:43
tinysimd::sqrt
scalarT< T > sqrt(scalarT< T > in)
Definition: scalar.hpp:294

References tinysimd::sqrt().

Member Data Documentation

◆ solverName

std::string Nektar::APEUpwindSolver::solverName
static
Initial value:
=
SolverUtils::GetRiemannSolverFactory().RegisterCreatorFunction(
"APEUpwind", APEUpwindSolver::create,
"Upwind solver for the APE equation")
Nektar::APEUpwindSolver::create
static RiemannSolverSharedPtr create(const LibUtilities::SessionReaderSharedPtr &pSession)
Definition: APEUpwindSolver.h:50
Nektar::LibUtilities::NekFactory::RegisterCreatorFunction
tKey RegisterCreatorFunction(tKey idKey, CreatorFunction classCreator, std::string pDesc="")
Register a class with the factory.
Definition: NekFactory.hpp:197
Nektar::SolverUtils::GetRiemannSolverFactory
RiemannSolverFactory & GetRiemannSolverFactory()
Definition: RiemannSolver.cpp:63

Definition at line 56 of file APEUpwindSolver.h.

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