Department of Physics and the Courant Institute of Mathematical Sciences, New York University, New York, NY 10021, USA.
Philos Trans A Math Phys Eng Sci. 2010 Apr 13;368(1916):1561-77. doi: 10.1098/rsta.2009.0140.
The Lagrangian view of passive scalar turbulence has recently produced interesting results and interpretations. Innovations in theory, experiments, simulations and data analysis of Lagrangian turbulence are reviewed here in brief. Part of the review is closely related to the so-called Kraichnan model for the advection of the passive scalar in synthetic turbulence. Possible implications for a better understanding of the passive scalar mixing in Navier-Stokes turbulence are also discussed.
被动标量湍流的拉格朗日观点最近产生了有趣的结果和解释。本文简要回顾了拉格朗日湍流的理论、实验、模拟和数据分析方面的创新。综述的一部分与被动标量在合成湍流中平流的所谓 Kraichnan 模型密切相关。还讨论了对更好地理解纳维-斯托克斯湍流中被动标量混合的可能影响。
