Boundary condition in terms of pressure, Mach number and temperature. P should be defined in the "rho" entry, T in the "E" entry and the Mach number in each direction in the corresponding momentum variable. This state is converted to conserved variables and a Dirichlet condition is applied. More...

#include <PressureMachTemperatureBC.h>

Inheritance diagram for Nektar::PressureMachTemperatureBC:

[legend]

Static Public Member Functions
static CFSBndCondSharedPtr	create (const LibUtilities::SessionReaderSharedPtr &pSession, const Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const Array< OneD, Array< OneD, NekDouble >> &pTraceNormals, const int pSpaceDim, const int bcRegion, const int cnt)
	Creates an instance of this class. More...

Static Public Attributes
static std::string	className
	Name of the class. More...

Protected Member Functions
virtual void	v_Apply (Array< OneD, Array< OneD, NekDouble >> &Fwd, Array< OneD, Array< OneD, NekDouble >> &physarray, const NekDouble &time)

Protected Member Functions inherited from Nektar::CFSBndCond
	CFSBndCond (const LibUtilities::SessionReaderSharedPtr &pSession, const Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const Array< OneD, Array< OneD, NekDouble >> &pTraceNormals, const int pSpaceDim, const int bcRegion, const int cnt)
	Constructor. More...

virtual void	v_ApplyBwdWeight ()

Private Member Functions
	PressureMachTemperatureBC (const LibUtilities::SessionReaderSharedPtr &pSession, const Array< OneD, MultiRegions::ExpListSharedPtr > &pFields, const Array< OneD, Array< OneD, NekDouble >> &pTraceNormals, const int pSpaceDim, const int bcRegion, const int cnt)

virtual	~PressureMachTemperatureBC (void)

Private Attributes
Array< OneD, Array< OneD, NekDouble > >	m_bcStorage

Friends
class	MemoryManager< PressureMachTemperatureBC >

Additional Inherited Members
Public Member Functions inherited from Nektar::CFSBndCond
virtual	~CFSBndCond ()

void	Apply (Array< OneD, Array< OneD, NekDouble >> &Fwd, Array< OneD, Array< OneD, NekDouble >> &physarray, const NekDouble &time=0)
	Apply the boundary condition. More...

void	ApplyBwdWeight ()
	Apply the Weight of boundary condition. More...

Protected Attributes inherited from Nektar::CFSBndCond
LibUtilities::SessionReaderSharedPtr	m_session
	Session reader. More...

Array< OneD, MultiRegions::ExpListSharedPtr >	m_fields
	Array of fields. More...

Array< OneD, Array< OneD, NekDouble > >	m_traceNormals
	Trace normals. More...

int	m_spacedim
	Space dimension. More...

VariableConverterSharedPtr	m_varConv
	Auxiliary object to convert variables. More...

NekDouble	m_diffusionAveWeight
	Weight for average calculation of diffusion term. More...

NekDouble	m_gamma
	Parameters of the flow. More...

NekDouble	m_rhoInf

NekDouble	m_pInf

NekDouble	m_pOut

Array< OneD, NekDouble >	m_velInf

int	m_bcRegion
	Id of the boundary region. More...

int	m_offset
	Offset. More...

Detailed Description

Boundary condition in terms of pressure, Mach number and temperature. P should be defined in the "rho" entry, T in the "E" entry and the Mach number in each direction in the corresponding momentum variable. This state is converted to conserved variables and a Dirichlet condition is applied.

Definition at line 51 of file PressureMachTemperatureBC.h.

Constructor & Destructor Documentation

◆ PressureMachTemperatureBC()

Nektar::PressureMachTemperatureBC::PressureMachTemperatureBC	(	const LibUtilities::SessionReaderSharedPtr &	pSession,
		const Array< OneD, MultiRegions::ExpListSharedPtr > &	pFields,
		const Array< OneD, Array< OneD, NekDouble >> &	pTraceNormals,
		const int	pSpaceDim,
		const int	bcRegion,
		const int	cnt
	)

private

Definition at line 50 of file PressureMachTemperatureBC.cpp.

     : CFSBndCond(pSession, pFields, pTraceNormals, pSpaceDim, bcRegion, cnt)
 {
     int nvariables = m_fields.size();
     int numBCPts =
         m_fields[0]->GetBndCondExpansions()[m_bcRegion]->GetNpoints();
  
     // Array for storing conserved variables on the boundary
     m_bcStorage = Array<OneD, Array<OneD, NekDouble>>(nvariables);
     for (int i = 0; i < nvariables; ++i)
     {
         m_bcStorage[i] = Array<OneD, NekDouble>(numBCPts, 0.0);
     }
  
     // We assume that the pressure is given in entry [0] of
     //   the BC ("rho" position) and the temperature in entry m_spacedim+1
     //   ("E" position)
     const Array<OneD, const NekDouble> pressure =
         m_fields[0]->GetBndCondExpansions()[m_bcRegion]->GetPhys();
     const Array<OneD, const NekDouble> temperature =
         m_fields[m_spacedim + 1]->GetBndCondExpansions()[m_bcRegion]->GetPhys();
  
     // Calculate density
     m_varConv->GetRhoFromPT(pressure, temperature, m_bcStorage[0]);
     // Calculate the internal energy times density
     m_varConv->GetEFromRhoP(m_bcStorage[0], pressure,
                             m_bcStorage[m_spacedim + 1]);
     Vmath::Vmul(numBCPts, m_bcStorage[m_spacedim + 1], 1, m_bcStorage[0], 1,
                 m_bcStorage[m_spacedim + 1], 1);
     // We can now obtain the sound speed at this (rho,e) condition
     Array<OneD, NekDouble> soundSpeed(numBCPts);
     m_varConv->GetSoundSpeed(m_bcStorage, soundSpeed);
  
     // Now update momentum and add kinetic energy to E
     Array<OneD, NekDouble> tmp(numBCPts);
     for (int i = 0; i < m_spacedim; ++i)
     {
         // tmp = velocity in i direction
         Vmath::Vmul(
             numBCPts,
             m_fields[i + 1]->GetBndCondExpansions()[m_bcRegion]->GetPhys(), 1,
             soundSpeed, 1, tmp, 1);
         // rho*u
         Vmath::Vmul(numBCPts, m_bcStorage[0], 1, tmp, 1, m_bcStorage[i + 1], 1);
         // tmp = 0.5 * rho *(rhou) in vel
         Vmath::Vmul(numBCPts, m_bcStorage[i + 1], 1, tmp, 1, tmp, 1);
         Vmath::Smul(numBCPts, 0.5, tmp, 1, tmp, 1);
         // Add to E
         Vmath::Vadd(numBCPts, m_bcStorage[m_spacedim + 1], 1, tmp, 1,
                     m_bcStorage[m_spacedim + 1], 1);
     }
  
     // Copy to boundary condition
     for (int i = 0; i < nvariables; ++i)
     {
         Vmath::Vcopy(
             numBCPts, m_bcStorage[i], 1,
             m_fields[i]->GetBndCondExpansions()[m_bcRegion]->UpdatePhys(), 1);
     }
 }

References Nektar::CFSBndCond::m_bcRegion, m_bcStorage, Nektar::CFSBndCond::m_fields, Nektar::CFSBndCond::m_spacedim, Nektar::CFSBndCond::m_varConv, CG_Iterations::pressure, Vmath::Smul(), Vmath::Vadd(), Vmath::Vcopy(), and Vmath::Vmul().

◆ ~PressureMachTemperatureBC()

virtual Nektar::PressureMachTemperatureBC::~PressureMachTemperatureBC ( void )

inlineprivatevirtual

Definition at line 84 of file PressureMachTemperatureBC.h.

84 {};

Member Function Documentation

◆ create()

static CFSBndCondSharedPtr Nektar::PressureMachTemperatureBC::create	(	const LibUtilities::SessionReaderSharedPtr &	pSession,
		const Array< OneD, MultiRegions::ExpListSharedPtr > &	pFields,
		const Array< OneD, Array< OneD, NekDouble >> &	pTraceNormals,
		const int	pSpaceDim,
		const int	bcRegion,
		const int	cnt
	)

inlinestatic

Creates an instance of this class.

Definition at line 57 of file PressureMachTemperatureBC.h.

     {
         CFSBndCondSharedPtr p =
             MemoryManager<PressureMachTemperatureBC>::AllocateSharedPtr(
                 pSession, pFields, pTraceNormals, pSpaceDim, bcRegion, cnt);
         return p;
     }

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), and CellMLToNektar.cellml_metadata::p.

◆ v_Apply()

void Nektar::PressureMachTemperatureBC::v_Apply	(	Array< OneD, Array< OneD, NekDouble >> &	Fwd,
		Array< OneD, Array< OneD, NekDouble >> &	physarray,
		const NekDouble &	time
	)

protectedvirtual

Implements Nektar::CFSBndCond.

Definition at line 115 of file PressureMachTemperatureBC.cpp.

 {
     boost::ignore_unused(Fwd, physarray, time);
  
     int nvariables = m_fields.size();
     int numBCPts =
         m_fields[0]->GetBndCondExpansions()[m_bcRegion]->GetNpoints();
     // Copy conserved variables to boundary condition
     for (int i = 0; i < nvariables; ++i)
     {
         Vmath::Vcopy(
             numBCPts, m_bcStorage[i], 1,
             m_fields[i]->GetBndCondExpansions()[m_bcRegion]->UpdatePhys(), 1);
     }
 }

References Nektar::CFSBndCond::m_bcRegion, m_bcStorage, Nektar::CFSBndCond::m_fields, and Vmath::Vcopy().

Friends And Related Function Documentation

◆ MemoryManager< PressureMachTemperatureBC >

friend class MemoryManager< PressureMachTemperatureBC >

friend

Definition at line 1 of file PressureMachTemperatureBC.h.

Member Data Documentation

◆ className

std::string Nektar::PressureMachTemperatureBC::className

static

Initial value:

=
    GetCFSBndCondFactory().RegisterCreatorFunction(
        "PressureMachTemperature", PressureMachTemperatureBC::create,
        "BC prescribed in terms of p, Ma and T.")

Name of the class.

Definition at line 70 of file PressureMachTemperatureBC.h.

◆ m_bcStorage

Array<OneD, Array<OneD, NekDouble> > Nektar::PressureMachTemperatureBC::m_bcStorage

private

Definition at line 87 of file PressureMachTemperatureBC.h.

Referenced by PressureMachTemperatureBC(), and v_Apply().

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members