Vortex Generators: Controlling Fluid Separation
In aerospace engineering, vortex generators are used to keep air attached to a wing surface at high angles of attack. We have applied this same principle to the RockerWave racing fin. A fin acts like a wing underwater; when you paddle hard, you are creating a "lateral angle of attack." If the fluid separates from the fin, you get turbulence, drag, and a loss of steering control. By integrating micro-vortex generators along the leading edge, we "energize" the boundary layer, ensuring the water stays attached to the foil even during hard, explosive strokes.
Section 1: The Science of Attachment
Turbulence is the result of flow separation. Our vortex generators create tiny, controlled swirls that force the main flow of water to re-attach to the fin’s surface. This allows us to use a thinner, higher-aspect-ratio foil that would otherwise "stall" at high paddle pressures.
Slicing through the water. View our innovative fin foil designs at RockerWave.com.
