This is the results of an application that models the pouring of a fluidity spiral used to measure the distance metal can flow in a channel before being stopped by solidification. The image shows the surface temperature on the mold, as well as streamtubes of molten metal flow within the mold, the magnitude of the velocity is colormapped to the surface of the streamtubes.
Data courtesy of Robert C. Schmitt and Hank M. Domanus.

These surfaces illustrate the vortex system generated by a flat-plate boundary layer flow interacting with a hemispherical roughness element. A steady horseshoe vortex forms at the base of the hemisphere (foreground), while a chain of interlacing hairpin vortices continuously evolves in the hemisphere wake (background). The colors represent pressure distributions within the vortex system.
Data courtesy Paul Fischer (ANL) and Henry Tufo (ANL).

This is a close-up view of the previous image.

This is a visualization of air flow over an M-6 wing. The two flat structures are cutting planes that are color mapped to the values of the air pressure along these planes. The "cut-out" region near the center of the image is the physical space of the wing, since there are no measurements within the wing itself that area is empty. The smooth surfaces on either side of the wing represent iso-contours of the mach data. On the surface of these contours the mach values are all equal, inside the surface the mach values are higher, outside they are lower.
Data courtesy of Lois Curfman McInnes (ANL).

Simulating buoyancy driven convection in a rotating spherical shell to model deep atmospheres. Image shows surfaces of constant temperature at Raleigh number Ra=5404 and Taylor number Ta=10,000 computed using 1536 spectral elements of order N=4.
Data courtesy Paul Fischer (ANL) and Henry Tufo (ANL).

Here air flow is coming from a dashboard vent an striking the windshield of an automobile. Near the bottom-right of the image the tightly packed cones are leaving the vent. At the top-center of the image the flow has distributed evenly and is rising up along the surface of the windshield. The cones' direction and magnitude are proportional to the air flows direction and velocity.
Data courtesy of Tom Canfield (ANL).