论文标题
在优化的恒星中被困的电子抑制湍流
Suppression of turbulence by trapped electrons in optimised stellarators
论文作者
论文摘要
在融合设备中，限制磁场的几何形状对驱动湍流损失的不稳定性有重大影响。恒星剂尤其如此，如果满足特定的优化标准，那么“捕获的电子模式”（TEM）是稳定的，如Wendelstein 7-X实验（W7-X）。在这里，通过数值模拟，我们发现W7-X确实具有低温传输，并且也受益于离子 - 温度梯度模式的稳定，从而为有限密度梯度下增强的限制方案的存在提供了理论支持。
In fusion devices, the geometry of the confining magnetic field has a significant impact on the instabilities that drive turbulent heat loss. This is especially true of stellarators, where the "trapped electron mode" (TEM) is stabilised if specific optimisation criteria are satisfied, as in the Wendelstein 7-X experiment (W7-X). Here we find, by numerical simulation, that W7-X indeed has low TEM-driven transport, and also benefits from stabilisation of the ion-temperature-gradient mode, giving theoretical support for the existence of enhanced confinement regimes at finite density gradients.
