SIMPLE aerodynamic configurations under even modest conditions can exhibit complex
flows with a wide range of temporal and spatial features. It has become common practice in …

This article reviews theory and applications of Koopman modes in fluid mechanics.
Koopman mode decomposition is based on the surprising fact, discovered in, that normal …

高超声速飞行器边界层容易经历层流/湍流转捩, 层流流动和湍流流动在摩擦阻力, 热交换,
噪声和掺混等方面有巨大差别, 转捩问题已成为制约高超声速技术突破的基础科学问题之一 …

THE field of fluid mechanics involves a range of rich and vibrant problems with complex
dynamics stemming from instabilities, nonlinearities, and turbulence. The analysis of these …

The main purpose of this chapter is to give a derivation, which is mathematically precise,
physically natural, and conceptually simple, of the quasilinear system of partial differential …

The decomposition of experimental data into dynamic modes using a data-based algorithm
is applied to Schlieren snapshots of a helium jet and to time-resolved PIV-measurements of …

This article reviews linear instability analysis of flows over or through complex two-
dimensional (2D) and 3D geometries. In the three decades since it first appeared in the …

Hydrodynamic stability theory has recently seen a great deal of development. After being
dominated by modal (eigenvalue) analysis for many decades, a different perspective has …

▪ Abstract The objective of this review is to critically assess the different approaches
developed in recent years to understand the dynamics of open flows such as mixing layers …

The dynamic mode decomposition (DMD) is a data-decomposition technique that allows the
extraction of dynamically relevant flow features from time-resolved experimental (or …