Goals: Analyse experimental data from JET

1
SOLPS5 modelling of Type I ELMing H-mode at JET
TFE modelling meeting 2007 Progress report
Goals Analyse experimental data from JET
Setup the SOLPS environment at JET
Start simulation of preELM phase at
JET
2

• Type I ELMing H-mode at JET Discharge
  parameters

D1Z_VSFE_LT configuration
Shot 69818 (Carbon Ablation)
ne
Ptot Prad
A.Huber
ELM parameters felm 5 Hz (First Type I
ELMs) Wdia/?WELM5.9/0.7 MJ
Wdia
Dalpha
Dalpha
Parameters Bt 2.5 T Ip 2.5 MA ne4x1019
m-3 ne (dl) 11x 1019 m-2 Prad(max)130MW P(NBI)
20 MW P(sol)14MW
Wdia
PNBI
Ptot Prad
Gas puff
GAS PUFF NO
3
Data analysis
Upstream profiles preELM phase
Shift applied to edge LIDAR 5.2 cm !!! (found
experimentally by A. Kallenbach )
ne m-3
CXSE
Ti eV

nesepm 2x1019 m-3
preELM






ELM






separatrix
Te eV
separatrix
Ti and Te in confined region approximately the
same 3keV in core 2keV at the separatrix
- 0.5 - 0.4 - 0.3 - 0.2 - 0.1
0 0.1 0.2
r-rsep
4
Langmuir probes - divertor
Inner target
Outer target
jsat A.m-2
36
jsat A.m-2
jsat 105A.m-2
1
35
2
34
3
33
4
Inner
outer
5
30
6
29
7
28
8
Dalpha
Dalpha
Te eV
Te eV
Te eV
S1
S28C
S2
S29A
S3A
S3C
S29C
S4A
S30A
ne m-3
S4B
ne m-3
ne 1019m-3
S30C
S4C
S5A
S33A
S5B
S33C
S5C
S6C
S34A
rmid m
rmid m
S7C
rmid m
S35A
S8B
S36A
S8C
5
SOLPS simulation pre ELM
Inputs (experiment) PSOL 14 MW ne(sepm)
2x1019 m-3 ?WELM0.7 MJ
Launched runs B2/Eirene Standalone flat
radial profile TB poloidally symetric radial
profile no TB in divertor legs
Mesh 36x96 cells

• Inputs (free)
• from neoclassical JETTO estimations
• D 0.02 m2.s-1
• ?i 0.1 m2.s-1
• ?e ?i /40 0.025 m-3.s-1
• ?ETB 4cm
• Experiment gt TiTe
• gt Equipartition of energy
• But from neoclasical theory gt ?e lt ?i !
• Decrease power flux of electrons or
• Increase power flux of ions in inner core in
  order to keep TiTe

? Not converged yet ?
Future plans Continue in SOLPS runs for preELM
Type I ELM simulation drifts