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Scaling of heat transport with beta in the DⅢ-D tokamak

机译:DⅢ-D托卡马克中含β的热传递尺度

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Experiments in the DⅢ-D tokamak have measured the scaling of heat transport with beta(β)while all other dimensionless parameters are held constant for both H mode and L mode plasmas. Experimental results from the beta scaling of heat transport help to differentiate between various proposed mechanisms of turbulent transport. For L mode plasmas, the beta scaling of heat transport over the range 0.26≤β_N≤0.49 is close to zero, with the thermal confinement time scaling as Bτ_th∝β~-0.05±0.10 and the effective(or one fluid)thermal diffusivity scaling asχ_eff∝χ_Bβ~-0.11±0.20. The beta scalings of the ion and electron thermal diffusivities are the same as the effective diffusivity to within the experimental errors.
机译:在DⅢ-D托卡马克中的实验已经测量了β(β)的热传递比例,而对于H模式和L模式等离子体,所有其他无量纲参数都保持恒定。 β传热定标的实验结果有助于区分各种提议的湍流传输机制。对于L型等离子体,在0.26≤β_N≤0.49范围内的热传输的β尺度接近于零,热约束时间尺度为Bτ_th∝β〜-0.05±0.10,有效(或一种流体)热扩散率尺度如χ_eff∝χ_Bβ〜-0.11±0.20。离子和电子热扩散系数的β标度与实验误差范围内的有效扩散系数相同。

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