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首页> 外文期刊>Journal of Nuclear Materials: Materials Aspects of Fission and Fusion >L-H transition in tokamak plasmas: 1.5-D simulations
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L-H transition in tokamak plasmas: 1.5-D simulations

机译:托卡马克等离子体中的L-H跃迁:1.5-D模拟

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摘要

Time-dependent theoretical models have been implemented in a 1.5-D transport code to describe the operational boundaries (L-H transition, ballooning limit) in terms of edge parameters. The width of the H-mode transport barrier (F. Wagner et al., Phys. Rev. Lett. 49 (1982) 1408) is self-consistently calculated and is related to #alpha#_(crit). Access to the second stable branch of the ballooning modes is possible at high triangularity. Time dependent trajectories are calculated for several machines and the L- to H-mode transition conditions are compared with global scalings. Calibrated to one experiment (ASDEX-UP), the model yields good agreement with global scaling laws and experimental pedestal electron temperatures, and is then applied to ITER.
机译:时间相关的理论模型已在1.5-D传输代码中实现,以根据边缘参数描述操作边界(L-H过渡,膨胀极限)。 H模式传输势垒的宽度(F. Wagner等人,Phys。Rev. Lett。49(1982)1408)是自洽计算的,并且与#alpha #_(crit)有关。在高三角形度下可以访问膨胀模式的第二个稳定分支。计算了几台机器的时间相关轨迹,并将L到H模式的过渡条件与全局比例进行了比较。经过对一个实验(ASDEX-UP)的校准,该模型与全局比例定律和实验基座电子温度产生了良好的一致性,然后将其应用于ITER。

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