Status of Disruption Simulations for FIRE

1
Status of Disruption Simulations for FIRE

• C. Kessel, PPPL
• NSO/PAC Meeting, University of Wisconsin, July
  10-11, 2001

2
Disruption Simulations for FIRE

• Disruption scenarios
• VDE (drift and disrupt)
• Radial disruption (on midplane)
• Vertically offset disruption (Zp2-5 cm off
  midplane
• Plasma parameter examination
• Halo temperature and width
• Thermal quench time
• Target dIp/dt and I(halo) from ITER database
• Numerical convergence issues

3
Disruption Simulations for FIRE

• Structure variations
• Examine copper additions to VV for cooling
• Create toroidally continuous current path thru
  divertor modules to avoid large local currents
• TSC provides plasma evolution and timing for
  structure analysis
• Plasma wire currents throughout disruption for
  use in 3D structure codes
• Currents, fields and forces are calculated in TSC
  for axisymmetric structure model

4
Structure Modelling used in TSC
5
VDE Simulation with 3 MA/ms Current Quench