For more information:
tezduyar@gmail.com
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The Parafoil Prediction:
Using Advanced Parallel Computing Methods
CDT Roger Waleski, USMA
Principal Investigator:
Professor Tayfun E. Tezduyar,
T*AFSM
This project is part of a greater research effort by the T*AFSM on
airdrop systems. Our research on airdrop systems involves extensive
collaborations with Natick Research, Development, and Engineering Center
and NASA Johnson Space Center. The objective of the project was to
determine the aerodynamical forces and moments acting on a parafoil at
different flap angles, with only one of the flaps in motion. The
stabilized finite element formulation developed by the T*AFSM, together
with a special-purpose mesh generation technique developed also by the
T*AFSM, was used in this project to carry out the computations on the
CRAY T3E-1200. CDT Waleski's simulations involved 8 different flap
settings. He investigated the variation of the aerodynamical forces and
moments with respect to the flap angle, and presented the results with
the advanced visualization software packages and hardware.
CDT Waleski was helped by Dr. Vinay Kalro, at that time a research
associate supervised by Tezduyar. Figures 1 and
2 show the computed flow field at flap angles 17 and 43 degrees,
respectively.
Figure 1. Computed flow field around the parafoil for the flap angle 17
degrees. Pressure distribution and streamlines.
Figure 2. Computed flow field around the parafoil for the flap angle 43
degrees. Pressure distribution and streamlines.
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