desc.objectives.HelicalForceBalance.compute

HelicalForceBalance.compute(*args, **kwargs)[source]

Compute helical MHD force balance errors.

Parameters:

  • R_lmn (ndarray) – Spectral coefficients of R(rho,theta,zeta) – flux surface R coordinate (m).

  • Z_lmn (ndarray) – Spectral coefficients of Z(rho,theta,zeta) – flux surface Z coordinate (m).

  • L_lmn (ndarray) – Spectral coefficients of lambda(rho,theta,zeta) – poloidal stream function.

  • p_l (ndarray) – Spectral coefficients of p(rho) – pressure profile (Pa).

  • i_l (ndarray) – Spectral coefficients of iota(rho) – rotational transform profile.

  • c_l (ndarray) – Spectral coefficients of I(rho) – toroidal current profile (A).

  • Psi (float) – Total toroidal magnetic flux within the last closed flux surface (Wb).

  • Te_l (ndarray) – Spectral coefficients of Te(rho) – electron temperature profile (eV).

  • ne_l (ndarray) – Spectral coefficients of ne(rho) – electron density profile (1/m^3).

  • Ti_l (ndarray) – Spectral coefficients of Ti(rho) – ion temperature profile (eV).

  • Zeff_l (ndarray) – Spectral coefficients of Zeff(rho) – effective atomic number profile.

Returns:

f (ndarray) – Helical MHD force balance error at each node (N).