File binormal_stpm.hxx

Defines

BINORMAL_STPM_H

struct BinormalSTPM : public Component

#include <binormal_stpm.hxx>

Adds terms to Density, Pressure and Momentum equations following the stellarator 2-point model from Yuhe Feng et al., PPCF 53 (2011) 024009 The terms add the effective parallel contribution of perpendicular transport which is of significance in long connection length scenarios. B Shanahan 2023 brendan.shanahan@ipp.mpg.de

Public Functions

BinormalSTPM(std::string name, Options &options, Solver *solver)

Inputs

• <name>

  • D Perpendicular density diffusion coefficient

  • chi Perpendicular heat diffusion coefficient

  • nu Perpendicular momentum diffusion coefficient

  • Theta Field line pitch as described by Feng et al.

virtual void transform(Options &state) override

Sets

• species

  • <name>

    • pressure correction

    • momentum correction

    • density correction

virtual void outputVars(Options &state) override

Add extra fields for output, or set attributes e.g docstrings.

Private Members

std::string name

Short name of the species e.g. h+.

bool diagnose

Output diagnostics?

Field3D Theta

Field3D chi

Field3D D

Field3D nu

Field line pitch, anomalous thermal, momentum diffusion.

Field3D nu_Theta

Field3D chi_Theta

Field3D D_Theta

nu/Theta, chi/Theta, D/Theta, precalculated

Field3D Theta_inv

Precalculate 1/Theta.