等离子体Turbulence模型的拟线性预测
The Quasilinear Premise for the Modeling of Plasma Turbulence
摘要：
准线性前提是等离子体湍流建模的假设，其中湍流波动由随机定相的线性波模式的叠加表示，并且能量通过非线性相互作用在这些波模式之间传递。我们具体定义是什么构成的准线性的前提，并提出了一系列的理论论据，即使在强烈的湍流等离子体中的线性波特性的相关性的支持。我们回顾证据支持和冲突的准线性前提下，从数值模拟和测量等离子体湍流的太阳风。虽然准线性前提的有效性问题仍有待解决，我们认为，证据在很大程度上支持了准线性前提在等离子体湍流建模中的价值，并且其有用性也可以通过从这种方法中获得的见解来判断，最终目标是发展预测任何湍流等离子体系统演化的能力，包括湍流波动的频谱，它们的耗散以及由此产生的等离子体加热。
英文摘要：
The quasilinear premise is a hypothesis for the modeling of plasma turbulence in which the turbulent fluctuations are represented by a superposition of randomly-phased linear wave modes, and energy is transferred among these wave modes via nonlinear interactions. We define specifically what constitutes the quasilinear premise, and present a range of theoretical arguments in support of the relevance of linear wave properties even in a strongly turbulent plasma. We review evidence both in support of and in conflict with the quasilinear premise from numerical simulations and measurements of plasma turbulence in the solar wind. Although the question of the validity of the quasilinear premise remains to be settled, we suggest that the evidence largely supports the value of the quasilinear premise in modeling plasma turbulence and that its usefulness may also be judged by the insights gained from such an approach, with the ultimate goal to develop the capability to predict the evolution of any turbulent plasma system, including the spectrum of turbulent fluctuations, their dissipation, and the resulting plasma heating.
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