The Batchelor Spectrum of Passive Scalar Turbulence in Stochastic Fluid Mechanics at Fixed Reynolds Number
The Batchelor Spectrum of Passive Scalar Turbulence in Stochastic Fluid Mechanics at Fixed Reynolds Number
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DOI：
10.1002/cpa.22022
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发表时间：
2019-11
影响因子：
3
通讯作者：
J. Bedrossian;A. Blumenthal;Samuel Punshon-Smith
中科院分区：
文献类型：
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作者：
J. Bedrossian;A. Blumenthal;Samuel Punshon-Smith
1959年，Batchelor预言，在小扩散系数k的流体中流动的被动标量的平稳统计量沿流体模型的粘性-对流范围内的惯性范围显示k−1功率谱。这一预测在实验和数值上都得到了广泛的检验，是被动标量湍流的核心预测。
In 1959 Batchelor predicted that the stationary statistics of passive scalars advected in fluids with small diffusivity k should display a k−1 power spectrum along an inertial range contained in the viscous‐convective range of the fluid model. This prediction has been extensively tested, both experimentally and numerically, and is a core prediction of passive scalar turbulence.