theta_grid_eik Module

Does the related namelist exist in the target input file?

Used to hold the specific index of numbered namelists

Do we want to skip the read step in init?

Do we want to skip the broadcast step in init?

Used in calculation of dp_new = -alpha_input/qval**2/rmaj*drhodpsi

The gradient of the pressure. Strictly speaking this parameter is not $\frac{\partial \beta}{\partial \rho}$ but $\beta \frac{1}{p}\frac{\partial p}{\partial \rho}$: in other words, the gradient of the magnetic field is ignored. Used only if bishop = 4 or 9.

Use Bishop relations to generate metric coefficients.

Use equilbrium data from the CHEASE file ogyropsi.dat

Step size for radial derivatives, $\Delta r_{\psi N}$. Should be "small enough", typically 0.001.

Vacuum magnetic dipole geometry

Used to scale the pressure gradient, only if bishop = 7 or 8.

Use EFIT equilibrium (EFIT, codes with eqdsk format)

Name of file with numerical equilibrium data (if required)

Name of file with numerical equilibrium normalization data (if required) currently, only used for dipole equilibrium (deq)

Change field-line coordinate. Recommended value: F

If true then forces up-down symmetry in some geometrical quantities

Use Toq-style NetCDF equilibrium (TOQ)

Read Colin Roach's GS2D equilibrium file

Unknown equilibrium file. You probably don't want this. FIXME: Add documentation

Deprecated -- redundant information.

Used with bishop == 3: controls pressure length scale by multiplying $p \frac{d \rho}{d \psi}$

Choose definition of flux surface coordinate

Deprecated, see force_sym instead

Deprecated, see use_large_aspect instead

If .true. use Miller-style local equilibrium else use other numerical equilibrium types

The number of theta grid points to use in eikcoefs calls. Currently may not have an effect for all equilibrium types. If not set then defaults to ntheta

Use Menard-style NetCDF equilibrium (JSOLVER)

Used to overrides s_hat prescribed by the numerical equilibrium, but only if bishop=2,3,4,5,8, or 9.

Use PPL NetCDF equilibrium (psipqgrz equilibrium from TRANSP/TRXPL)

If true use large aspect ratio expansions in eik geometry to get ~s-alpha

Write a little extra about geometry to the screen.