Generalized hydromagnetic Rayleigh-Taylor instability

Granular Rayleigh-Taylor instability

A granular instability driven by gravity is studied experimentally and numerically. The instability arises as grains fall in a closed Hele-Shaw cell where a layer of dense granular material is positioned above a layer of air. The initially flat front defined by the grains subsequently develops into a pattern of falling granular fingers separated by rising bubbles of air. A transient coarsening ...

The Rotating Rayleigh-Taylor Instability

numerical simulation of rayleigh-taylor instability

rayleigh-taylor (rt) instability has a growing importance in many fields including aircraft industry and astrophysics. the development and the growth of rt instability were investigated using sinusoidal disturbances with different wavelength at the interface of two fluids. numerical simulations were performed by solving navier-stokes unsteady equations with the vof formulation. results of the 2...

Multiple Layer Rayleigh-Taylor Instability

We study a general multiple layer Rayleigh-Taylor instability problem for both compressible and incompressible inviscid uids. Our main result is that many features of a multilayer system are universal, in the sense they do not depend on such details as the number of layers, their thicknesses, equations of state for the uids, and equilibrium density distributions. It is shown that a compressible...

Atomistic simulation of the Rayleigh-Taylor instability

Large-scale atomistic simulations are performed using both the molecular dynamics and direct simulation Monte Carlo algorithms. These simulations are used to investigate several aspects of turbulent behavior, focusing on the Rayleigh-Taylor instability, in which a heavy fluid lies on top of a light fluid in the presence of a gravitational field. The use of atomistic techniques allows us to capt...