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arXiv 0710.2660physics.plasm-ph
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磁化等离子体中的粘性和禁闭

Viscosity and confinement in magnetized plasma

Robert W. Johnson

摘要:

提出了一种替代的Braginskii分解,一个植根于治疗的粘度作为一个标量的坐标自由表示。通过适当地应用剪切率张量,可以求解新古典力密度方程的待定速度依赖性,以及[R. W. Johnson,Phys.Plasmas,under review],使用改进的极向扩展。再次得到了磁化等离子体的假塑性行为,确定了高粘度溶液是物理性的。一个明确的约束模式和粘度之间的关系进行观察,表明物理起源的运输障碍,mesalals,和其他现象。陀螺粘性的贡献被认为是一个千分之一的占主导地位的碰撞粘度的顺序上的效果。

英文摘要:

An alternative to the Braginskii decomposition is proposed, one rooted in treating the viscosity as a scalar quantity in a coordinate-free representation. With appropriate application to the rate-of-shear tensor, one may solve the neoclassical force density equations for its undetermined velocity dependence, as well as the radial and poloidal profiles mentioned in [R. W. Johnson, Phys. Plasmas, under review], using an improved poloidal expansion. The pseudoplastic behavior of magnetized plasma is again obtained, and the high viscosity solution is determined to be physical. A clear relationship between confinement mode and viscosity is observed, indicating a physical origin for transport barriers, pedestals, and other phenomena. The gyroviscous contribution is found to be an effect on the order of one one-thousandth of one percent of the dominant collisional viscosity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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