Observation of Edge Reynolds Stress Increase Preceding an L-H Transition in Compact Helical System
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概要
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An increase in turbulent Reynolds stress preceding an L-H transition in the Compact Helical System (CHS) was observed. A positive increase in the Reynolds stress is associated with a negative jump in the floating potential. The relationship of signs is consistent with the momentum balance equation. Therefore, this observation supports the hypothesis that the Reynolds stress plays an important role in triggering the L-H transition in CHS plasmas.
著者
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YOSHIMURA Yasuo
National Insitute for Fusion Science
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ISOBE Mitsutaka
National Insitute for Fusion Science
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MATSUOKA Keisuke
National Institute for Fusion Science
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Takase Yuichi
Graduate School Of Frontier Sciences The Univ. Of Tokyo
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Nagashima Yoshihiko
Graduate School Of Frontier Sciences The Univ. Of Tokyo
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Ejiri Akira
Graduate School Of Frontier Science University Of Tokyo
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SUZUKI Chihiro
National Institute for Fusion Science
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NISHIMURA Shin
National Institute for Fusion Science
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OKAMURA Shoichi
National Institute for Fusion Science
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Itoh Sanae
Research Institute For Applied Mechanics Kyushu University
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Yagi Masatoshi
Research Instittue For Applied Mechanics Kyushu University
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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Akiyama Tsuyoshi
National Cardiovascular Center
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Fujisawa Akihide
Research Institute For Applied Mechanics Kyushu University
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NAGAOKA Kenichi
National Institute for Fusion Science
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EJIRI Akira
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 509-5292, Japan
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TAKASE Yuichi
Graduate School of Frontier Science, University Tokyo, Kashiwa 277-8561, Japan
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NAGASHIMA Yoshihiko
Graduate School of Frontier Science, The University of Tokyo, Kashiwa 277-8561, Japan
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