API

EQDSKReader

Provides functionality to read EQDSK file.

Content

Content of EQDSK file.

Attrs:

case    identification character string
nw      number of horizontal grid points
nh      number of vertical grid points
rdim    horizontal dimension in metter of computational box
zdim    vertical dimension in metter of computational box
rcentr  R in meter of vacuum toroidal magnetic field BCENTR
rleft   Minimum R in meter of rectangular computational box
zmid    Z of center of computational box in meter
rmaxis  R of magnetic axis in meter
zmaxis  Z of magnetic axis in meter
simag   poloidal flux at magnetic axis in Weber /rad
sibry   poloidal flux at the plasma boundary in Weber /rad
bcentr  Vacuum toroidal magnetic field in Tesla at RCENTR
current Plasma current in Ampere
fpol    Poloidal current function in m-T, F = RB_T on flux grid
pres    Plasma pressure in nt / m^2 on uniform flux grid
ffprim  FF’(ψ) in (mT)^2 / (Weber /rad) on uniform flux grid
pprime  P’(ψ) in (nt/m^2 ) / (Weber /rad) on uniform flux grid
psirz   Poloidal flux in Weber / rad on the rectangular grid points
qpsi    q values on uniform flux grid from axis to boundary
nbbbs   Number of boundary points
limitr  Number of limiter points
rbbbs   R of boundary points in meter
zbbbs   Z of boundary points in meter
rlim    R of surrounding limiter contour in meter
zlim    Z of surrounding limiter contour in mete

Content(path::AbstractString)

Build Content object from a file with a in EQDSK format.

Content(io::IO)

Build Content object from an input stream with a in EQDSK format.

calc_boundary_psi(c::Content)

Returns average value of ψ at the specified plasma boundary.

This value is used in normalize_psi.

create_normalized_psi_interpolator(c::Content)::Function

Returns function ψ(r,z) where value is 0 at magnetic axis and 1 at plasma boundary

create_psi_interpolator(ψ, rpoints, zpoints)

Create interpolator for matrix ψ with coordinates rpoints and zpoints.

Returns function ψ(r,z) to compute ψ at arbitrary point.

create_psi_interpolator(c::Content)

Create ψ interpolator for Content.

in_plasma(ψ, r, z, separation_z)::Bool

Is point (r,z) in plasma?

lowest_boundary_point(c::Content)

Returns coordinates of the lowest point at plasma boundary. This is useful to select points in plasma. There should be ψ ≤ 1 and the points are to be above this point.

function normalize_psi(ψ::Matrix{Float64})::Matrix{Float64}

Normalize matrix Ψ to have zero at minimum and 1.0 on the specified plasma boundary.

Returns normalized matrix.

psi_separation_z(c::Content)

The Z coordinate to separate plasma and divertor areas with ψ ≤ 1.

read_eqdsk(io::IO)

Reads a stream according to spec found in G_EQDSK.pdf.

returns

[`Content`](@ref)

rpoints(c::Content)

returns

    Coordinates of Ψ(r,z) along tokamak large radius R.

zpoints(c::Content)

Returns coordinates of Ψ(r,z) along tokamak vertial axis Z.