Class HelicalGridTurbulence

Defined in File HelicalGridTurbulence.h

Inheritance Relationships

Base Type

public SimpleGridTurbulence (Class SimpleGridTurbulence)

Class Documentation

class HelicalGridTurbulence : public SimpleGridTurbulence 

Turbulent grid-based magnetic field with a simple power-law spectrum.

Public Functions

HelicalGridTurbulence(const SimpleTurbulenceSpectrum &spectrum, const GridProperties &gridProp, double H, unsigned int seed = 0)

Create a random initialization of a turbulent field.

Parameters:

spectrum – TurbulenceSpectrum instance to define the spectrum of turbulence
gridProp – GridProperties instance to define the underlying grid
H – Helicity
seed – Random seed

virtual Vector3d getField(const Vector3d &pos) const

inline virtual Vector3d getField(const Vector3d &position, double z) const

const ref_ptr<Grid3f> &getGrid() const: Return a const reference to the grid

Vector3f getMeanFieldVector() const: Evaluate the mean vector of all grid points

double getMeanFieldStrength() const: Evaluate the mean of all grid points

double getRmsFieldStrength() const: Evaluate the RMS of all grid points

std::array<float, 3> getRmsFieldStrengthPerAxis() const: Evaluate the RMS of all grid points per axis

std::vector<std::pair<int, float>> getPowerSpectrum() const: Evaluate generated power-spectrum

void dumpToFile(std::string filename) const: Dump a Grid3f to a binary file

inline double getBrms() const

inline virtual double getCorrelationLength() const

inline size_t addReference() const

inline size_t removeReference() const

inline int removeReferenceNoDelete() const

inline size_t getReferenceCount() const

Public Static Functions

static void initTurbulence(ref_ptr<Grid3f> grid, double Brms, double lMin, double lMax, double alpha, int seed, double H)

static void initTurbulence(ref_ptr<Grid3f> grid, double Brms, double lMin, double lMax, double alpha, int seed)

static void checkGridRequirements(ref_ptr<Grid3f> grid, double lMin, double lMax)

static void executeInverseFFTInplace(ref_ptr<Grid3f> grid, fftwf_complex *Bkx, fftwf_complex *Bky, fftwf_complex *Bkz)

Protected Functions

void initTurbulence()

void initGrid(const GridProperties &grid)

Protected Attributes

unsigned int seed

ref_ptr<Grid3f> gridPtr

const TurbulenceSpectrum &spectrum

mutable size_t _referenceCount