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 POD

POD Roof Pressure

POD Animations

Proper Orthogonal Decomposition (POD)

Various sets of data were taken in the Meteorological Wind Tunnel at WEFL.  Both surface pressure and flow velocity were analyzed using POD.  Pressure was sampled at 25 taps uniformly spaced over a one-square-inch area.  Velocity was taken about one meter upstream, using three cross-wires to capture the along-wind and vertical velocity components.  The setup was as shown below:
POD analysis was performed on fluctuations of the pressure and flow.  Animated mode shapes are shown here for representative cases.
 

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Last modified: September 23, 2008