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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamics near a shear flow with Coriolis force
科里奥利力 剪切流 动力学
2023/5/16
In this talk, I will discuss the dynamics near a shear flow when the Coriolis force is involved. Compared with the non-Coriolis case, the spectral properties of the linearized Euler operator change fu...
Domain Effcts in the Finite / Infiite Time Stability Properties of a Viscous Shear Flow Discontinuity
Domain Effects in the Finite In Finite Time Stability Properties Viscous Shear Flow Discontinuity
2014/10/23
Whether it is designing and controlling super-efficient high speed transport systems or understanding environmental fluid flows, a key question that arises is: what state does the fluid flow take and ...
Adhesion behavior of endothelial progenitor cells to endothelial cells in simple shear flow
Endothelial progenitor cell Endothelial cell Cell adhesion Flow chamber Immersed boundary method
2012/2/28
The adhesion of endothelial progenitor cells (EPCs) on endothelial cells (ECs) is one of the critical physiological processes for the regenesis of vascular vessels and the prevention of serious cardio...
Cell adhesion plays a central role in multicellular organisms helping to maintain their integrity and homeostasis.This complex process involves many different types of adhesion proteins, and synergeti...
Phenomenological model for ordered onions under shear flow
Phenomenological model ordered onions under shear flow
2010/11/23
We here propose a phenomenological model for the multi-lamellar vesicles (onions) formation
induced by shear flow. In a nonionic surfactant (C12E4) system, onion phases under a fixed shear flow show ...
Stochastic Structural Stability Theory applied to roll/streak formation in boundary layer shear flow
Stochastic Structural Stability Theory boundary layer shear flow
2010/11/16
Stochastic Structural Stability Theory (SSST) provides an autonomous, deterministic, nonlinear dynamical system for evolving the statistical mean state of a turbulent system. In this work SSST is appl...
Nonlinear saturation of Rayleigh-Taylor instability and generation of shear flow in equatorial spread-F plasma
Nonlinear saturation Rayleigh-Taylor instability shear flow equatorial spread-F plasma
2009/11/12
An analysis of low order mode coupling equations is used to describe the nonlinear behaviour of the Rayleigh-Taylor (RT) instability in the equatorial ionosphere. The nonlinear evolution of RT instabi...
Higher-order Korteweg-de Vries models for internal solitary waves in a stratified shear flow with a free surface
Higher-order Korteweg-de Vries models internal solitary waves stratified shear flow
2009/11/12
A higher-order extension of the familiar Korteweg-de Vries equation is derived for internal solitary waves in a density- and current-stratified shear flow with a free surface. All coefficients of this...
On the predominance of oblique disturbances in the supersonic shear flow instability of the geomagnetic tail boundary
oblique disturbances supersonic shear flow instability geomagnetic tail boundary
2009/11/12
A study is made of the influence of the longitudinal magnetic field and density inhomogeneity on the supersonic shear flow instability at the magnetospheric tail boundary. It is shown that the most un...
Stochastic resonance in a nonlinear model of a rotating,stratified shear flow,with a simple stochastic inertia-gravity wave parameterization
Stochastic resonance nonlinear model shear flow stochastic inertia-gravity wave parameterization
2009/11/11
We report on a numerical study of the impact of short, fast inertia-gravity waves on the large-scale, slowly-evolving flow with which they co-exist. A nonlinear quasi-geostrophic numerical model of a ...
Shear Flow of Sea Ice in the Marginal Ice Zone with Collision Rheology
Flow of Sea Ice Marginal Ice Zone Collision Rheology.
2009/6/15
Shear Flow of Sea Ice in the Marginal Ice Zone with Collision Rheology.
Longitudinal dispersion in natural channels: 2. The roles of shear flow dispersion and dead zones in the River Severn, U.K.
Channels dispersion dead zones tracers River Severn
2009/3/24
The classical one-dimensional advection-diffusion equation (ADE) gives an inadequate description of tracer cloud evolution in the River Severn, U.K. A solute transport model incorporating the effects ...
Equatorial Kelvin and Inertio-Gravity Waves in Zonal Shear Flow
Equatorial Kelvin Inertio-Gravity Waves Zonal Shear Flow
2009/2/13
The interaction of geostrophic zonal mean currents in an equatorial ocean with free, neutrally stable, internal Kelvin and inertio-gravity waves is investigated using a two-layer, reduced-gravity mode...
The Effects of Mean Shear Flow on Equatorial Basin Modes
Mean Shear Flow Equatorial Basin Modes
2009/2/8
We test the sensitivity of energy trapping by equatorial basin modes to the presence of mean currents in a series of numerical experiments. At low frequency, trapping persists in the form of modified ...
On Stable and Unstable Rossby Waves in Non-Zonal Oceanic Shear Flow
Rossby Waves Non-Zonal Oceanic Shear Flow
2009/2/7
We derive linear equations for the study of baroclinic instability of a non-zonal oceanic shear flow whose direction is allowed to change with depth. These equations can be used to study unstable dist...