ntms¶
Description of neoclassical tearing modes
Maximum occurrences (MDS+ backend only): 1
New in version 3.0.4: lifecycle status alpha
Changed in version 4.2.0.
ids_propertiesstructure¶
See common IDS structure reference: ids_properties.
vacuum_toroidal_fieldstructure¶Characteristics of the vacuum toroidal field (used in rho_tor […]
Characteristics of the vacuum toroidal field (used in rho_tor definition)
vacuum_toroidal_field/r0 ⇹mFLT_0D¶Reference major radius where the vacuum toroidal magnetic field […]
Reference major radius where the vacuum toroidal magnetic field is given (usually a fixed position such as the middle of the vessel at the equatorial midplane)
time_slice(itime)AoS¶Description of neoclassical tearing modes for various time slices
Description of neoclassical tearing modes for various time slices
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time_slice(itime)/mode(i1)AoS¶List of the various NTM modes appearing during the simulation. […]
List of the various NTM modes appearing during the simulation. If a mode appears several times, use several indices in this array of structure with the same m,n values.
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time_slice(itime)/mode(i1)/onsetstructure¶NTM onset characteristics
NTM onset characteristics
time_slice(itime)/mode(i1)/onset/width ⇹mFLT_0D¶Seed island full width at onset time
Seed island full width at onset time
time_slice(itime)/mode(i1)/onset/time_offset ⇹sFLT_0D¶Offset time (when a mode disappears). […]
Offset time (when a mode disappears). If the mode reappears later in the simulation, use another index of the mode array of structure
time_slice(itime)/mode(i1)/onset/phase ⇹radFLT_0D¶Phase of the mode at onset
Phase of the mode at onset
time_slice(itime)/mode(i1)/dwidth_dt ⇹m.s^-1FLT_0D¶Time derivative of the full width of the mode
Time derivative of the full width of the mode
time_slice(itime)/mode(i1)/dphase_dt ⇹rad.s^-1FLT_0D¶Time derivative of the phase of the mode
Time derivative of the phase of the mode
time_slice(itime)/mode(i1)/dfrequency_dt ⇹s^-2FLT_0D¶Time derivative of the frequency of the mode
Time derivative of the frequency of the mode
time_slice(itime)/mode(i1)/n_phiINT_0D¶Toroidal mode number
Toroidal mode number
Changed in version 3.42.0: Renamed from n_tor
time_slice(itime)/mode(i1)/deltaw(i2)AoS¶deltaw contributions to the Rutherford equation
deltaw contributions to the Rutherford equation
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time_slice(itime)/mode(i1)/torque(i2)AoS¶torque contributions to the Rutherford equation
torque contributions to the Rutherford equation
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time_slice(itime)/mode(i1)/calculation_methodSTR_0D¶Description of how the mode evolution is calculated
Description of how the mode evolution is calculated
time_slice(itime)/mode(i1)/delta_diff(:) ⇹m^2.s^-1FLT_1D¶Extra diffusion coefficient for the transport equations of Te, […]
Extra diffusion coefficient for the transport equations of Te, ne, Ti
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time_slice(itime)/mode(i1)/rho_tor_norm ⇹1FLT_0D¶Normalized flux coordinate on which the mode is centred
Normalized flux coordinate on which the mode is centred
time_slice(itime)/mode(i1)/rho_tor ⇹mFLT_0D¶Flux coordinate on which the mode is centred
Flux coordinate on which the mode is centred
time_slice(itime)/mode(i1)/power_stabilization ⇹WFLT_0D¶Power required for stabilization of this tearing mode, computed […]
Power required for stabilization of this tearing mode, computed from the modified Rutherford equation. This value represents the instantaneous power requirement to drive sufficient localized current at the rational surface to suppress island growth or maintain steady-state width. This quantity serves as the setpoint input for real-time EC power and mirror steering controllers in NTM stabilization feedback loops
time_slice(itime)/mode(i1)/power_stabilization_margin ⇹WFLT_0D¶Multiplicative safety margin applied to the theoretically-calculated […]
Multiplicative safety margin applied to the theoretically-calculated stabilization power requirement for this mode. Typical values range from 1.0 (no margin) to 1.5 (50% margin). Values > 1.0 request additional power beyond the physics-model minimum to ensure robust stabilization under uncertain conditions
time_slice(itime)/mode(i1)/detailed_evolutionstructure¶Detailed NTM evolution on a finer timebase than the time_slice […]
Detailed NTM evolution on a finer timebase than the time_slice array of structure
time_slice(itime)/mode(i1)/detailed_evolution/time_detailed(:) ⇹sFLT_1D¶Time array used to describe the detailed evolution of the NTM
Time array used to describe the detailed evolution of the NTM
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time_slice(itime)/mode(i1)/detailed_evolution/width(:) ⇹mFLT_1D¶Full width of the mode
Full width of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/dwidth_dt(:) ⇹m.s^-1FLT_1D¶Time derivative of the full width of the mode
Time derivative of the full width of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/phase(:) ⇹radFLT_1D¶Phase of the mode
Phase of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/dphase_dt(:) ⇹rad.s^-1FLT_1D¶Time derivative of the phase of the mode
Time derivative of the phase of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/frequency(:) ⇹HzFLT_1D¶Frequency of the mode
Frequency of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/dfrequency_dt(:) ⇹s^-2FLT_1D¶Time derivative of the frequency of the mode
Time derivative of the frequency of the mode
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time_slice(itime)/mode(i1)/detailed_evolution/n_phiINT_0D¶Toroidal mode number
Toroidal mode number
Changed in version 3.42.0: Renamed from n_tor
time_slice(itime)/mode(i1)/detailed_evolution/deltaw(i2)AoS¶deltaw contributions to the Rutherford equation
deltaw contributions to the Rutherford equation
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time_slice(itime)/mode(i1)/detailed_evolution/torque(i2)AoS¶torque contributions to the Rutherford equation
torque contributions to the Rutherford equation
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time_slice(itime)/mode(i1)/detailed_evolution/calculation_methodSTR_0D¶Description of how the mode evolution is calculated
Description of how the mode evolution is calculated
time_slice(itime)/mode(i1)/detailed_evolution/delta_diff(:,:) ⇹m^2.s^-1FLT_2D¶Extra diffusion coefficient for the transport equations of Te, […]
Extra diffusion coefficient for the transport equations of Te, ne, Ti
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time_slice(itime)/mode(i1)/detailed_evolution/rho_tor_norm(:) ⇹1FLT_1D¶Normalized flux coordinate on which the mode is centred
Normalized flux coordinate on which the mode is centred
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