プラズマの非局所輸送現象と様々な構造形成 5.磁場閉じ込めプラズマにおける揺らぎの非局所性と輸送 5.2 揺らぎの非局所性にかかわる理論的背景
プラズマの非局所輸送現象と様々な構造形成 5.磁場閉じ込めプラズマにおける揺らぎの非局所性と輸送 5.2 揺らぎの非局所性にかかわる理論的背景
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等离子体中的非局域输运现象及各种结构的形成 5.磁约束等离子体中涨落和输运的非局域性 5.2 涨落非局域性相关的理论背景
DOI:
10.1585/jspf.78.903
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
雅敏 矢木
中科院分区:
文献类型:
--
作者:
公孝 伊藤;早苗 伊藤;雅敏 矢木
Nonlocal properties of fluctuations in confined plasmas are briefly surveyed. Contributions to understanding the bifurcation phenomena, improved confinement, and transient transport problem are explained. The theoretical progress in this aspect is addressed: Namely, the fluctuations are not excited by linear instabilities but are dressed with other turbulent fluctuations or fluctuations of meso-scale. Nonlinear interactions of fluctuations with different scale lengths are essential indictating the dynamics of turbulence and turbulent transport. There are activators and suppressers in global inhomogeneities for evolution of turbulence. Turbulent fluctuations, on the other hand, induce or destroy these global inhomogeneities. Finally, statistical nature of turbulence is addressed.