1. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 1 of 10 SOLPS5 simulations of Type I ELMing H-mode at JET Barbora Gulejová Richard Pitts, David Coster, Xavier Bonnin, Marc Beurskens, Stefan Jachmich, Arne Kallenbach

2. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 2 of 10 OUTLINE Type I ELMing H-mode (3MA,3T) at JET SOLPS - experiment benchmark Type I ELMing H-mode (2MA,2T) at JET SOLPS – EDGE2D/Nimbus benchmark * * * *

3. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 3 of 10 Type I ELMing H-mode on JET # 70224 W dia P IN ~ 20 MW P RAD (below Xpoint) P RAD (core) D alpha Parameters B t = 3 T I p = 3 MA n e =6x10 19 m -3 P(SOL)= 19 MW No GAS PUFF !! ν* ped ~0.03 -0.08 (expected for ITER!) ELM parameters f elm ~ 2 Hz ΔW ELM ~ 1 MJ Simulated for the first time ! … with SOLPS5 Core LIDAR Edge LIDAR Li beam HRTS ECE Langmuir probes time =baseline scenario for Q DT =10 burning plasma operation on ITER !!! To avoid divertor damage => maximum ΔW ELM (ITER) ~ 1MJ Bolometry (A.Huber) radiation between ELMs

4. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 4 of 10 Core LIDAR Edge LIDAR Li beam HRTS ECE SOLPS vs. experiment - upstream First results for pre-ELM * quite promising * unlike for TCV,AU inward pinch radial profile necessary!! D ┴ = 0.01 m 2.s -1 in pedestal 1 m 2.s -1 in SOL Χ ┴ = 0.7 m 2.s -1 in pedestal 1 m 2.s -1 in SOL X i < X e n e [m -3 ] T e [eV] v perp [m.s -1 ] inward pinch! D [m 2.s -1 ] Χe [m 2.s -1 ] Xi [m 2.s -1 ] T i [eV] SOLPS grid, sep EFIT, sep

5. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 5 of 10 SOLPS vs.experiment - targets Outer targetInner target SOLPS LP 80 1,2 30 r-r sep r-r sep map2mid r-r sep r-r sep map2mid Inner target – good agreement Outer target SOLPS Te too high! 50 0.5 50

6. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 6 of 10 Benchmark SOLPS/EDGE2D/Nimbus Core LIDAR Edge LIDAR Li beam ECE Parameters B t = 2 T I p = 2 MA n e = 4x10 19 m -3 P(SOL)= 12 MW GAS PUFF from inner divertor !! ELM parameters f elm ~ 30 Hz ΔW ELM ~ 200 kJ P IN ~ 14 MW P RAD (core) D alpha W dia time # 58569 Succesfully modelled by EDGE2D + NIMBUS by Arne Kallenbach (PPCF 46,2004) Grid problem  Deep mesh simulations in progress

7. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 7 of 10 Pre-ELM model vs.experiment EDGE2D+NIMBUS SOLPS5 r-r sep [m] 0 2 2 0.05 Same Ansatz D,Chi,v Same ne,Te,Ti upstream profiles -0.05

8. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 8 of 10 Pre-ELM vs. ELM simulation 0.1 0.05 EDGE2D+NIMBUS SOLPS5 ELM D x 20 Chi x 40 1ms -0.05 0 0 0.05 -0.05

9. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 9 of 10 Upstream profiles evolution during ELM SOLPS5 Te ne r-r sep [m] preELM post ELM 3ms post ELM 1ms preELM ELM peak post ELM 3ms post ELM 1ms ELM peak Transport coefficients D, Ch, were increased: * during 1ms * everywhere poloidaly * in the interval 5cm inside and 0.5 cm outside of separatrix radialy

10. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 10 of 10 SOLPS vs. experiment-targets(LP) outer target inner target SOLPS5 250 25 7 EDGE2D+NIMBUS LPLP 250 25 5 outer target r-r sep map2mid preELM ELM

11. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 11 of 10 Thank you for attention !

12. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 12 of 10 CONCLUSIONS Type III ELMing H-mode at TCV and Type I ELMing H-mode at JET have been succesfully simulated by SOLPS5 both steady state and transient event Agreement obtained between : code - experiment code - code * * * * * *

13. Centre de Recherches en Physique des Plasmas TF-E modellers meeting B. Gulejová6/5/2008 13 of 10