FLUID DYNAMICS GALLERY

The following two movies illustrate our new numerical method for modelling the subgrid scales (that is such small scales which a computer fails to resolve). The method computes the two-dimmensional Navier-Stokes equation which approximates large-scale vortex motions in oceans and atmospheres. Novelty of our approach is that the small-scale motions are computed dynamically and not postulated as in traditional subgrid models. In these movies, the resolved (large-scale) vorticity is shown in the lower plane and the wavepackets of the subgrid (small-scale) vorticity are shown on the top plane.

Merging of two vortices

Instability of a jet flow




venturi pipe
Aerofoil
3D flow past a cylinder at Reynolds number equal to 100

2D past a cylinder at Reynolds number equal to 3900


Supersonic jet

Flow over a step


Collision of vortex dipoles I
Collision of vortex dipoles II
Motion of three vortex patches
Instablity of a vortex surrounded by a vorticity ring
Rayleigh-Taylor instability in an inviscid fluid
Rayleigh-Taylor instability in a viscous fluid
Kelvin-Helmholtz instability
GREAT RED SPOT ON JUPITER

TAYLOR-COUETTE FLOW:ASK GREG KING ABOUT IT
greg@maths.warwick.ac.uk

TAYLOR-COUETTE I


TAYLOR-COUETTE II


TAYLOR-COUETTE III


TAYLOR-COUETTE IV


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snazar@maths.warwick.ac.uk