GASDYNAMICS
POROUS MEDIUM EQUATION
Focusing solution for an elongated hole:
non-selfsimilar solution.
VERY VISCOUS FLOWS
Spreading of a blob of viscous fluid on a flat surface: boundary
elements method simulation for the Stokes flow. The insert shows the
streamlines near the 'nose' of the viscous current.
My experiment on the
corrugation of very viscous fluids
STUDIES ON WETTING TRANSITION
Micro-interferogram of droplets of nonane near the wetting
transition on a C8 Silane monolayer, at a temperature of 33.1C.
Sketch of the microscope that I designed and built
with Jiang and Bruce for obtaining the previous picture
SMOOTHING OF TEXTURED 2D IMAGES
Photograph (Piedra Movediza Del Tandil) restored with the pseudo-local filter. The original noisy image is on the left and it is restored on the right preserving the texture of the stone. Processing time: 3.5 sec in a PC-600 Mhz.
SMOOTHING
OF TEXTURED 3D DATA
Triangulated Moebius srip with a color pattern (top).
Noise is added to both the color pattern and the shape
(center). The shape is partially restored with a combination PDE's
and a pseudo-local filter (bottom).
SKELETONS
Affine
invariant skeleton (inner points) of a shape with noise (outer curve,
left). The same figure was skewed out, in order to show the affine
invariance of the skeleton (right). Straight lines in the skeleton
may be associated with skew-symmetry.
GEODESIC CURVATURE FLOW
Evolution of a curve on a surface. The velocity of the curve is
equal to the geodesic curvature. The curve converges to a geodesic in
this example.