goals: * analyse experimental data from jet * setup the solps environment at jet
DESCRIPTION
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. D1Z_VSFE_LT configuration. Shot # 69818 - PowerPoint PPT PresentationTRANSCRIPT
TF-E modellers meeting B. Gulejova 07/03/2007
TF-E
Goals: * Analyse experimental data from JET
* Setup the SOLPS environment at JET
* Start simulation of preELM phase at JET
SOLPS5 modelling of Type I ELMing
H-mode at JET
TFE modelling meeting 2007
Progress report
TF-E modellers meeting B. Gulejova 07/03/2007
TF-E Type I ELMing H-mode at JET : Discharge parameters
Shot # 69818 (Carbon Ablation)
Dalpha ParametersBt = 2.5 TIp = 2.5 MA ne=4x1019 m-3
ne (dl) = 11x 1019 m-2
Prad(max)=130MWP(NBI)=20 MWP(sol)=14MW
Gas puff
Wdia
PNBI
ne
Ptot Prad
ELM parametersfelm = 5 Hz (First Type I ELMs)Wdia/ΔWELM=5.9/0.7 MJ
GAS PUFF= NO
Ptot Prad
Dalpha
Wdia
D1Z_VSFE_LT configuration
A.Huber
TF-E modellers meeting B. Gulejova 07/03/2007
TF-EData analysis
Upstream profiles : preELM phase
separatrix
nesepm = 2x1019 m-3
ne [m-3]
r-rsep
Te [eV]
CXSETi [eV]
separatrix
- 0.5 - 0.4 - 0.3 - 0.2 - 0.1 0 0.1 0.2
Shift applied to edge LIDAR = 5.2 cm !!!(found experimentally by A. Kallenbach )
Ti and Te in confined region approximately the same~3keV in core ~2keV at the separatrix
*
* * * ** *
** ** * *
ELM
preELM
TF-E modellers meeting B. Gulejova 07/03/2007
TF-ELangmuir probes - divertor
rmid [m]
ne [m-3]ne [m-3]
jsat [A.m-2]
rmid [m]
Inner
Te [eV]Te [eV]
jsat [A.m-2]
outer
1234567
8
Dalpha Dalpha S1
S2
S3A
S3C
S4A
S4B
S4C
S5A
S5B
S5C
S6C
S7C
S8BS8C
S28C
S29A
S29C
S30A
S30C
S33A
S34A
S35A
S36A
S33C
35343330
2829
36
Inner target Outer target
ne [1019m-3]
jsat [105A.m-2]
Te [eV]
TF-E modellers meeting B. Gulejova 07/03/2007
TF-ESOLPS simulation – pre ELM
Inputs (experiment): PSOL = 14 MW ne(sepm) =2x1019 m-3
ΔWELM=0.7 MJ
Inputs (free): from neoclassical + JETTO estimationsD = 0.02 m2.s-1 χi = 0.1 m2.s-1
χe ~ χi /40 = 0.025 m-3.s-1
ΔETB ~ 4cm
Experiment => Ti~Te => Equipartition of energy
But from neoclasical theory => χe < χi !
Decrease power flux of electrons orIncrease power flux of ions in inner core in order to keep Ti~Te
Launched runs:
*B2/Eirene *Standalone
*flat radial profile*TB
*poloidally symetric radial profile*no TB in divertor legs
Mesh: 36x96 cells
Not converged yet Future plans:* Continue in SOLPS runs for preELM * Type I ELM simulation + drifts