FAST Topology Module Pictures

No-Slip Surfaces

• Surface topology on a hemisphere cylinder.
• Surface topology on a hemisphere cylinder combined with particle traces.
• Surface topology on a hemisphere cylinder using J. Helman's software.

Vortex cores

• Vortices behind a single simulated liquid oxygen post in the shuttle main engine.
• Vortices near a simulated delta wing.
• Vortices near a simulated shuttle launch vehicle.

Harrier jump jet simulation

• Data: K.Chawla and W.R. Van Dalsem, "Numerical Simulation of STOL Operations Using Thrust Reversers," AIAA 92-4254, AIAA Aircraft Design Systems Meeting, 24-26 August, 1992, hilton Head, SC.
• Vortices combined with pressure plot on ground and symetry plane.
• Vortices with trajectories limited to flow where velocity derivative has complex eigenvalues.
• Vortices without this limit.
• Limited vortices combined with pressure plot on ground.
• Limited vortices combined with pressure plot on ground and symetry plane; sans annotation.

SOFIA flying laboratory

• Data: C. A. Atwood and W.R. Van Dalsem, "Flowfield Simulation about the SOFIA Airborne Observatory," 30th AIAA Aerospace Sciences Meeting and Exhibit, January 1992, Reno, NV, AIAA 92-0656.
• Vortices.
• A closeup of SOFIA vortices.

Misc.

• Hemisphere cylinder off-surface critical points with a particularly interesting stable manifold trace (in red).
• Hemisphere cylinder with traces from all off surface spiral critical points.