Struphy equilibrium

AdhocTorus

Ad hoc tokamak MHD equilibrium with circular concentric flux surfaces. For a cylindrical coordinate system mathematical formulation with transformation formulae mathematical formulation the magnetic field is given by mathematical formulatio…

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Coordinate slices

Pressure and density sampled from the generated equilibrium data. Heatmaps use the perceptually uniform Viridis palette.

XY plane at 0

Pressurex–y · -2.64e+0 to 4.16e-2

Densityx–y · -5.93e+0 to -1.01e+0

XZ plane at 0

Pressurex–z · -3.40e+0 to -3.59e-1

Densityx–z · -6.81e+0 to -2.20e+0

YZ plane at 0

Pressurey–z · -3.40e+0 to -3.59e-1

Densityy–z · -6.81e+0 to -2.20e+0

Coordinate-line profiles

X-line · pressure / density

Y-line · pressure / density

Z-line · pressure / density

Parameters

Parameter	Value	Description
`a`	`1`	Minor radius of torus (default: 1.).
`R0`	`3`	Major radius of torus (default: 3.).
`B0`	`2`	On-axis (r=0) toroidal magnetic field (default: 2.).
`q_kind`	`0`	Which safety factor profile, see docstring (0 or 1, default: 0).
`q0`	`1.71`	Safety factor at r=0 (default: 1.71).
`q1`	`1.87`	Safety factor at r=a (default: 1.87).
`n1`	`2`	1st shape factor for ion number density profile (default: 0.).
`n2`	`1`	2nd shape factor for ion number density profile (default: 0.).
`na`	`0.2`	Ion number density at r=a (default: 1.).
`p_kind`	`1`	Kind of pressure profile, see docstring (0 or 1, default: 1).
`p0`	`1`	constant factor for ad hoc pressure profile (default: 1.).
`p1`	`0.1`	1st shape factor for ad hoc pressure profile (default: 0.).
`p2`	`0.1`	2nd shape factor for ad hoc pressure profile (default: 0.).
`beta`	`0.179`	On-axis (r=0) plasma beta if p_kind=1 (ratio of kinematic pressure to B^2/(2*mu0), default: 0.179).
`psi_k`	`3`	Spline degree to be used for interpolation of poloidal flux function (if q_kind=1, default=3).
`psi_nel`	`50`	Number of cells to be used for interpolation of poloidal flux function (if q_kind=1, default=50).