ITPA Toronto November 2006 1 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
Impact of local change in
connection length on limiter power load
Impact of local change in
connection length on limiter power load
EQUIPE TORE SUPRA / DSM / DRFC
Ph. Ghendrih, Association Euratom-CEA,
CEA Cadarache, 13108 St Paul lez Durance
EQUIPE TORE SUPRA / DSM / DRFC
Ph. Ghendrih, Association Euratom-CEA,
CEA Cadarache, 13108 St Paul lez Durance
ITPA Toronto November 2006 2 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
Ergodic Divertor : short cuts to the core
Ergodic Divertor : short cuts to the core
CORE Short connection lengthsmall power flux
Long connection lengthlarge power flux
ITPA Toronto November 2006 3 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
Linear analysis : long connection length = larger mode
Linear analysis : long connection length = larger mode
ki
Sheath stabilisation
ShiftShift
ITPA Toronto November 2006 4 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
Impact of long connection length
potential density
Long connection length
ITPA Toronto November 2006 5 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
Density drop = low flux
250
200
150
100
50
0
240200160
12
8
4
0
n
150100500(r-a)/s
1.0
0.8
0.6
0.4
0.2
0.0
S, mean y=192 y= 64 y=128
ITPA Toronto November 2006 6 /6Impact of connection length inhomogeneity on heat flux to limitersImpact of connection length inhomogeneity on heat flux to limiters
Euratom TORE SUPRA
0.5
0.4
0.3
0.2
0.1
0.0
16012080400(r-a)/s
2
3
4
567
10
2n
mean y=128
Long connection length
low heat flux to limiter
Long connection length
low heat flux to limiter
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