From
VKS1 (1999 - 2003) to VKS2
(2005 - É)
VKS1
(a-f)
150 kW
150 kW
Dynamo
TM73
Na at
rest
No Dynamo
Induction Mechanisms
Omega effect (Diff. rot.)
Ç alpha È effect (helicity)
B.C.
effects
Large
scale fluctuations
VKS2
Geometry
optimization :
- TM73 impellers
- midplane annulus
- Na layer at rest
- high mag. permeability disks
(a-f ; g-i)
Energetic optimization :
- Driving power x2