TAFSM

Team for Advanced Flow Simulation and Modeling



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For more information:
  tezduyar@gmail.com

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.