Equation for plasma current ramp-up time lower limit author: P B Lloyd, CCFE, Culham Science Centre args : output structure : residual error; constraint value; residual error in physical units; output string; units string Equation for plasma current ramp-up time lower limit #=# times #=#=# ftohs, tohsmn and hence also optional here. Logic change during pre-factoring: err, symbol, units will be assigned only if present. ftohs : input real : f-value for plasma current ramp-up time tohs : input real : plasma current ramp-up time for current initiation (s) tohsmn : input real : minimum plasma current ramp-up time (s)
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=dp), | intent(out) | :: | tmp_cc | |||
real(kind=dp), | intent(out) | :: | tmp_con | |||
real(kind=dp), | intent(out) | :: | tmp_err | |||
character(len=1), | intent(out) | :: | tmp_symbol | |||
character(len=10), | intent(out) | :: | tmp_units |
subroutine constraint_eqn_041(tmp_cc, tmp_con, tmp_err, tmp_symbol, tmp_units)
!! Equation for plasma current ramp-up time lower limit
!! author: P B Lloyd, CCFE, Culham Science Centre
!! args : output structure : residual error; constraint value;
!! residual error in physical units; output string; units string
!! Equation for plasma current ramp-up time lower limit
!! #=# times
!! #=#=# ftohs, tohsmn
!! and hence also optional here.
!! Logic change during pre-factoring: err, symbol, units will be assigned only if present.
!! ftohs : input real : f-value for plasma current ramp-up time
!! tohs : input real : plasma current ramp-up time for current initiation (s)
!! tohsmn : input real : minimum plasma current ramp-up time (s)
use constraint_variables, only: ftohs, tohsmn
use times_variables, only: tohs
implicit none
real(dp), intent(out) :: tmp_cc
real(dp), intent(out) :: tmp_con
real(dp), intent(out) :: tmp_err
character(len=1), intent(out) :: tmp_symbol
character(len=10), intent(out) :: tmp_units
tmp_cc = 1.0D0 - ftohs * tohs/tohsmn
tmp_con = tohsmn * (1.0D0 - tmp_cc)
tmp_err = tohsmn * tmp_cc
tmp_symbol = '>'
tmp_units = 'sec'
end subroutine constraint_eqn_041