smod_equil_resonant_absorption Submodule

This submodule defines an inhomogeneous medium in Cartesian geometry with a constant resistivity value. Two (constant) density profiles are defined which are connected by a sine profile, representing the interface inbetween. This density profile allows for resonant absorption, the geometry can be overridden in the parfile.

This equilibrium is taken from Van Doorsselaere, T., & Poedts, S. (2007). Modifications to the resistive MHD spectrum due to changes in the equilibrium. Plasma Physics and Controlled Fusion, 49(3), 261.

Contents

Variables

s rho_left rho_right zeta x_start x_end

Functions

rho0 drho0 T0 B02 B03

Module Procedures

resonant_absorption_eq

Variables

Type	Visibility	Attributes		Name		Initial
real(kind=dp),	private		::	s
real(kind=dp),	private		::	rho_left
real(kind=dp),	private		::	rho_right
real(kind=dp),	private		::	zeta
real(kind=dp),	private		::	x_start
real(kind=dp),	private		::	x_end

Functions

function rho0(x)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=dp),	intent(in)			::	x

Return Value real(kind=dp)

function drho0(x)

Arguments

Type	Intent	Optional	Attributes		Name
real(kind=dp),	intent(in)			::	x

Return Value real(kind=dp)

function T0()

Arguments

None

Return Value real(kind=dp)

function B02()

Arguments

None

Return Value real(kind=dp)

function B03()

Arguments

None

Return Value real(kind=dp)

Module Procedures

module procedure resonant_absorption_eq module module subroutine resonant_absorption_eq(settings, grid, background, physics) Interface →

Sets the equilibrium

Arguments

Type	Intent	Optional	Attributes		Name
type(settings_t),	intent(inout)			::	settings
type(grid_t),	intent(inout)			::	grid
type(background_t),	intent(inout)			::	background
type(physics_t),	intent(inout)			::	physics