GWU BME Fellowship Flow Over the Human Hand

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GWU BME FellowshipFlow Over the Human Hand

• Mentor Dr. Rajat Mittal
• Presenter Ryan Kelly

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Computational Fluid Dynamics

• Computer Simulation of Physical Flow
• Our Case Iterative Solution of the Navier-Stokes
  Equations
• No closed form solution
• Requires Iterative Solution

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Hand Model 4 Positions
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Meshed Model CFD Grid I

• Non-uniform cartesian grid
• Concentrated resolution on the fingers
• 120x100x1001.2million units
• Finer resolution -gt better results

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Meshed Model and CFD Grid II
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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

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Pressure Distribution Position 1
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Pressure Distribution Position 1
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Pressure Distribution Position 1
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Pressure Distribution Position 1
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Pressure Distribution Position 1
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Streamtraces
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The Future

• Simulate Established Flow
• Extract pressure, viscosity, vorticity
  measurements
• Compute drag on the hand for each position
• Publish (?)