equilibrium.hpp

struct Equilibrium

Struct to store the equilibrium data from EFIT in the G-EQDSK files

Single parameters

int idnum

Id of file.

size_t nx

Number of points in the R direction.

size_t ny

Number of points in the z direction.

double rdim

Dimensions of the represented grid in R (meters)

double zdim

Dimensions of the represented grid in z (meters)

double rcentr

Reference value for R (meters)

double bcentr

Vacuum toroidal magnetic field at rcentr (Tesla)

double rleft

R at left (inner) boundary (meters)

double zmid

z at middle of domain (meters)

double rmagx

R at magnetic axis (O-point) (meters)

double zmagx

z at magnetic axis (O-point) (meters)

double simagx

Poloidal flux psi at magnetic axis.

double sibdry

Poloidal flux psi at plasma boundary.

double cpasma

Plasma current (Amperes)

Profiles

One dimensional profiles as function of psi where the first value corresponds to simagx and the last to sibdry.

Array<double> fpol

F(psi) = R Bt (meter-Tesla).

Array<double> pres

p(psi) (Pascal)

Array<double> qpsi

q(psi)

Poloidal flux

Matrix2D<double> psi

2D array (nx,ny) of poloidal flux

Boundaries description (optional)

size_t nbdry

Number of points of plasma boundaries.

size_t nlim

Number of points of wall limits.

Array<double> rbdry

Plasma boundary R (meters)

Array<double> zbdry

Plasma boundary z (meters)

Array<double> rlim

Wall limits R (meters)

Array<double> zlim

Wall limits z (meters)

Public Functions

inline Equilibrium(int id = 0, size_t nx = 0, size_t ny = 0)

Default constructor

Parameters

• id – idnum

• nx – Number of points in R

• ny – Number of points in z