论文标题

随机流中的材料表面:运动和间歇性的积分

Material surfaces in stochastic flows: integrals of motion and intermittency

论文作者

Il'yn, A. S., Kopyev, A. V., Sirota, V. A., Zybin, K. P.

论文摘要

我们考虑流体在固定的各向同性不可压缩的随机流中的线,表面和体积元素在$ d $维空间中,并研究其统计特性的长期演变。我们报告了一个$ d!-1 $随机的运动积分的家庭,从某种意义上说,它们的明确形式不取决于速度的统计数据。之前只讨论过其中一个。

We consider the line, surface and volume elements of fluid in stationary isotropic incompressible stochastic flow in $d$-dimensional space and investigate the long-time evolution of their statistic properties. We report the discovery of a family of $d!-1$ stochastical integrals of motion that are universal in the sense their explicit form does not depend on the statistics of velocity. Only one of them has been discussed previously.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源