GWU BME Fellowship Flow Over the Human Hand Mentor: Dr. Rajat Mittal Presenter: Ryan Kelly
Computational Fluid Dynamics Computer Simulation of Physical Flow Our Case: Iterative Solution of the Navier-Stokes Equations No closed form solution Requires Iterative Solution
Hand Model: 4 Positions
Meshed Model CFD Grid I Non-uniform cartesian grid Concentrated resolution on the fingers 120x100x100=1.2 million units Finer resolution -> better results
Meshed Model and CFD Grid II
Current Results Technical Issues Resolved System finally debugged Some initial qualitative results have been obtained Pressure Distributions, Streamtraces (streamlines) are of greatest significance at this time Quantitative results forthcoming, require further analysis
Pressure Distribution: Position 1
Streamtraces
The Future Simulate Established Flow Extract pressure, viscosity, vorticity measurements Compute drag on the hand for each position Publish (?)