NASA / MODIS Terra Model

Von Kármán Vortex Street Simulator

Flow Regime: Laminar Periodic Shedding
Reynolds Number (Re): 280
Strouhal Number (St): 0.21
Shedding Frequency (f): 0.00018 Hz (T=1.54 h)
Vortex Wavelength (λ): 78.4 km
Yangtze Sediment Interaction: Co-existing Shear Plume
Spectral Filter:
Draw Mode:
Atmospheric Boundary Layer 14.5 m/s
Inflow Wind Velocity14.5 m/s
Kinematic Viscosity (ν)0.018
Obstacle Diameter (D)32 km
Tracer Layers & Dispersion
Marine Stratocumulus Deck85%
Yangtze Sediment Plume FlowHigh
Colormap Legend True Color
Deep Ocean Cloud Deck Yangtze Mud
Observation Context: Satellite observations by Terra/Aqua MODIS reveal 1,950m Mount Hallasan on Jeju Island acting as a bluff body obstacle against cold northerly winter monsoons. The resulting flow separation triggers an alternating cyclonic (counter-clockwise) and anticyclonic (clockwise) vortex street stretching over 400 km southward into the East China Sea, running parallel to sediment discharge plumes from the Yangtze River estuary.
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