metrics.f90 File Reference

Contains module metrics. More...

Modules
module	metrics
	Module for reading in VMEC input and computing metric elements on the SIESTA (sqrt-flux) radial grid. Computes and stores the real-space metric elements, Jacobian based on square root of fluc splined vmec coordinate system.

Functions/Subroutines
subroutine	metrics::init_metric_elements ()
	Initialize the metric elements.
subroutine	metrics::set_grid_sizes (mpol_in, ntor_in, nfp_in, tor_modes)
	Set grid sizes.
subroutine	metrics::surfavg (average, q3d, nsmin, nsmax)
	Surface average a quantity.
subroutine	metrics::loadgrid (istat)
	Load the R, Z and lambda arrays from VMEC.
subroutine	metrics::rz_to_ijsp (rmn, zmn, lasym)
	Transform from fourier R Z to real space qauntities.
subroutine	metrics::half_mesh_metrics (r1_i, ru_i, rv_i, z1_i, zu_i, zv_i)
	Compute the metric elements on the half mesh.
subroutine	metrics::full_mesh_metrics
	Gets the full grid metric elements.
subroutine	metrics::check_metrics
	@ brief Test to check that we computed the upper metric elements correctly.
subroutine	metrics::toupper (xsubsij, xsubuij, xsubvij,
	Converts to contravariant component full grid.
subroutine	metrics::tolowerh (xsupsij, xsupuij, xsupvij,
	Converts to covariant component half grid.
subroutine	metrics::tolowerf (xsupsij, xsupuij, xsupvij,
	Converts to covariant component full grid.
subroutine	metrics::cleanup_metric_elements
	Deallocate memory containing metric elements on the half mesh.
subroutine	metrics::dealloc_full_lower_metrics
	Deallocate memory containing metric elements on the full mesh.

Variables
real(dp), dimension(:,:), allocatable	metrics::sqrtg
	Jacobian on half grid.
real(dp), dimension(:,:), allocatable	metrics::gss
	Lower metric tensor half grid. e_s . e_s.
real(dp), dimension(:,:), allocatable	metrics::gsu
	Lower metric tensor half grid. e_s . e_u.
real(dp), dimension(:,:), allocatable	metrics::gsv
	Lower metric tensor half grid. e_s . e_v.
real(dp), dimension(:,:), allocatable	metrics::guu
	Lower metric tensor half grid. e_u . e_u.
real(dp), dimension(:,:), allocatable	metrics::guv
	Lower metric tensor half grid. e_u . e_v.
real(dp), dimension(:,:), allocatable	metrics::gvv
	Lower metric tensor half grid. e_v . e_v.
real(dp), dimension(:,:), allocatable	metrics::hss
	Upper metric tensor half grid. e^s . e^s.
real(dp), dimension(:,:), allocatable	metrics::hsu
	Upper metric tensor. e^s . e^u.
real(dp), dimension(:,:), allocatable	metrics::hsv
	Upper metric tensor. e^s . e^v.
real(dp), dimension(:,:), allocatable	metrics::huu
	Upper metric tensor. e^u . e^u.
real(dp), dimension(:,:), allocatable	metrics::huv
	Upper metric tensor. e^u . e^v.
real(dp), dimension(:,:), allocatable	metrics::hvv
	Upper metric tensor. e^v . e^v.
real(dp), dimension(:,:), allocatable	metrics::gssf
	Lower metric tensor full grid. e_s . e_s.
real(dp), dimension(:,:), allocatable	metrics::gsuf
	Lower metric tensor full grid. e_s . e_u.
real(dp), dimension(:,:), allocatable	metrics::gsvf
	Lower metric tensor full grid. e_s . e_v.
real(dp), dimension(:,:), allocatable	metrics::guuf
	Lower metric tensor full grid. e_u . e_u.
real(dp), dimension(:,:), allocatable	metrics::guvf
	Lower metric tensor full grid. e_u . e_v.
real(dp), dimension(:,:), allocatable	metrics::gvvf
	Lower metric tensor full grid. e_v . e_v.
real(dp)	metrics::rmax
	Maximum of the grid R inside the last closed flux surface.
real(dp)	metrics::rmin
	Minimum of the grid R inside the last closed flux surface.
real(dp)	metrics::zmax
	Maximum of the grid Z inside the last closed flux surface.
real(dp)	metrics::zmin
	Minimum of the grid Z inside the last closed flux surface.
real(dp)	metrics::skston
	Start timer.
real(dp)	metrics::skstoff
	Stop timer.

Detailed Description

Contains module metrics.