Turbulence is often studied by tracking its spatiotemporal evolution and analyzing the
dynamics of its different scales. The dual to this perspective is that of an observer who starts …

In this paper, we propose a novel stochastic Lagrangian formulation of dissipatively
perturbed Lie transport, which is based on the statistical generalized Cauchy invariants …

在固体边界上, 黏性流动中的纵横过程通过黏附条件发生交叉耦合, 导致这些过程从无到有的
产生, 形成流场内部复杂结构与过程的源头. 深入理解这些边界耦合对于优化构型设计和流动与 …

In 1945–1949, Lars Onsager made an exact analysis of the high-Reynolds-number limit for
individual turbulent flow realisations modelled by incompressible Navier–Stokes equations …

The Lighthill–Panton and Lyman–Huggins interpretations of vorticity dynamics are extended
to the dynamics of enstrophy. There exist two competing definitions of the vorticity current …

Drag for wall-bounded flows is directly related to the spatial flux of spanwise vorticity
outward from the wall. In turbulent flows a key contribution to this wall-normal flux arises from …

Jet impingement has been widely used due to its high heat transfer rate, but numerical
simulation of this flow is highly challenging because of complex flow phenomena. In this …

Mechanisms that ultimately lead to the enhanced wall shear stress toward the end of
transition to turbulence in a zero-pressure gradient boundary layer are examined for two …

Estimation of near-wall turbulence in channel flow from outer observations is investigated
using adjoint-variational data assimilation. We first consider fully resolved velocity data …

In this paper we demonstrate that the incompressible Navier–Stokes equations can be
formulated as a system of quadratic polynomial equations with a regular, tractable structure …