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首页> 外文期刊>Nuclear fusion >VERTICAL INSTABILITY IN TCV: COMPARISON OF EXPERIMENTAL AND THEORETICAL GROWTH RATES
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VERTICAL INSTABILITY IN TCV: COMPARISON OF EXPERIMENTAL AND THEORETICAL GROWTH RATES

机译:TCV中的垂直不稳定度:实验和理论增长率的比较

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摘要

Growth rates of the axisymmetric mode in vertically elongated plasmas in the Toke- mak a Configuration Variable (TCV) are measured and compared with numerically calculated growth rates for the reconstructed equilibria. This comparison is made over a range of discharge parame- ters including elongation, triangularity and vertical position within the vacuum vessel. Growth rates increase with respect to increasing elongation, decreasing triangularity and increasing vertical distance from the top of the vacuum vessel, as expected. The agreement between the growth rates measured in the experiment and the numerically determined growth rates is excellent, in particular for the full lin- ear maguetohydrodynamic (MHD) model, which accounts for the non-rigid motion of strongly shaped plasma cross-sections.
机译:测量了托克马克结构变量(TCV)中垂直伸长的等离子体中轴对称模式的生长速率,并将其与重建平衡的数值计算生长速率进行比较。该比较是在一系列放电参数(包括伸长率,三角形和真空容器内的垂直位置)上进行的。如预期的那样,相对于伸长率的增加,三角形的减小和距真空容器顶部的垂直距离的增加,增长率有所提高。在实验中测得的增长率与数值确定的增长率之间的一致性非常好,特别是对于完整的线性耳蜗流体力学(MHD)模型而言,该模型说明了强形状等离子体横截面的非刚性运动。

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