Zonal flow triggers the L-H transition in the Experimental Advanced Superconducting Tokamak
The kinetic energy transfer between shear flows and the ambient turbulence is investigated in the Experimental Advanced Superconducting Tokamak during the L-H transition. As the rate of energy transfer from the turbulence into the shear flow becomes comparable to the energy input rate into the turbu...
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| Veröffentlicht in: | Physics of plasmas 2012-07, Vol.19 (7) |
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| container_title | Physics of plasmas |
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| creator | Manz, P. Xu, G. S. Wan, B. N. Wang, H. Q. Guo, H. Y. Cziegler, I. Fedorczak, N. Holland, C. Müller, S. H. Thakur, S. C. Xu, M. Miki, K. Diamond, P. H. Tynan, G. R. |
| description | The kinetic energy transfer between shear flows and the ambient turbulence is investigated in the Experimental Advanced Superconducting Tokamak during the L-H transition. As the rate of energy transfer from the turbulence into the shear flow becomes comparable to the energy input rate into the turbulence, the transition into the H-mode occurs. As the observed behavior exhibits several predicted features of zonal flows, the results show the key role that zonal flows play in mediating the transition into H-mode. |
| doi_str_mv | 10.1063/1.4737612 |
| format | Article |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ENERGY TRANSFER Fluid dynamics Fluid flow H-MODE PLASMA CONFINEMENT HT-7U TOKAMAK KINETIC ENERGY L-MODE PLASMA CONFINEMENT Plasmas SHEAR Shear flow Superconductivity Tokamak devices TURBULENCE Turbulent flow |
| title | Zonal flow triggers the L-H transition in the Experimental Advanced Superconducting Tokamak |
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