GWU BME Fellowship Flow Over the Human Hand Mentor: Dr. Rajat Mittal Presenter: Ryan Kelly.

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Presentation transcript:

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 (?)