论文标题

在二维不可压缩的碳音-TU方程式中变厚:湍流特征

Coarsening in the two-dimensional incompressible Toner-Tu equation: Signatures of turbulence

论文作者

Rana, Navdeep, Perlekar, Prasad

论文摘要

我们研究了二维,不可压缩的碳酸含量方程中的粗化动力学。我们表明,通过Vortex合并事件进行更粗糙的过程,并且动力学至关重要取决于Reynolds编号RE。对于低RE,粗糙的过程与Ginzburg-Landau动态具有相似之处。另一方面,对于高度,粗糙显示出湍流的特征。特别是,我们显示了从干预层分离量表到耗散量表的肠层面的存在。

We investigate coarsening dynamics in the two-dimensional, incompressible Toner-Tu equation. We show that coarsening proceeds via vortex merger events, and the dynamics crucially depend on the Reynolds number Re. For low Re, the coarsening process has similarities to Ginzburg-Landau dynamics. On the other hand, for high Re, coarsening shows signatures of turbulence. In particular, we show the presence of an enstrophy cascade from the intervortex separation scale to the dissipation scale.

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