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Isotope effect on gyro-fluid edge turbulence and zonal flows

机译:同位素对陀螺流体边缘湍流和区流的影响

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摘要

The role of ion polarisation and finite Larmor radius on the isotope effect on turbulent tokamak edge transport and flows is investigated by means of local electromagnetic multispecies gyro-fluid computations. Transport is found to be reduced with the effective plasma mass for protium, deuterium and tritium mixtures. This isotope effect is found for both cold and warm ion models, but significant influence of finite Larmor radius and polarisation effects are identified. Sheared flow reduction of transport through self generated turbulent zonal flows and geodesic acoustic modes in the present model (not including neoclassical flows) is found to play only a minor role on regulating isotopically improved confinement.
机译:采用局部电磁多数陀螺液计算研究了离子偏振和有限拉马尔半径对湍流Tokamak边缘传输和流动的同位素效应的作用。 发现运输减少了蛋白质,氘和氚混合物的有效血浆肿块。 发现这种同位素效应对于冷热离子模型,但鉴定了有限的大肠杆半径和偏振效应的显着影响。 发现通过自生成的湍流区域流动的剪切流量减少,目前模型中的流程和测地声学模式(不包括新古典流量)仅在调节同位素改善的限制方面发挥着小的作用。

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