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首页> 外文期刊>Philosophical transactions of the Royal Society. Mathematical, physical, and engineering sciences >Third-moment descriptions of the interplanetary turbulent cascade, intermittency and back transfer
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Third-moment descriptions of the interplanetary turbulent cascade, intermittency and back transfer

机译:行星际湍流级联,间歇性和反向传递的第三刻描述

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摘要

We review some aspects of solar wind turbulence with an emphasis on the ability of the turbulence to account for the observed heating of the solar wind. Particular attention is paid to the use of structure functions in computing energy cascade rates and their general agreement with the measured thermal proton heating. We then examine the use of 1 h data samples that are comparable in length to the correlation length for the fluctuations to obtain insights into local inertial range dynamics and find evidence for intermittency in the computed energy cascade rates. When the magnetic energy dominates the kinetic energy, there is evidence of anti-correlation in the cascade of energy associated with the outward-and inward-propagating components that we can only partially explain.
机译:我们回顾了太阳风湍流的某些方面,重点是湍流解释太阳风加热现象的能力。特别注意结构函数在计算能量级联速率中的使用以及它们与测得的热质子加热的一般一致性。然后,我们检查使用1 h数据样本的长度与波动的相关长度具有可比性,以获取对局部惯性范围动力学的了解,并找到计算出的能量级联速率间歇性的证据。当磁能主导动能时,有证据表明与向外传播和向内传播的分量相关联的能量级联中存在反相关,我们只能部分加以解释。

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