Drag Reduction Morphologies

• Swept, tapered tips

• Shark tail

• Leading edge bumps

• Trailing edge serrations

• Fillets

• Bluff body grooves

• Passive, porous bleed (subsurface canals)

• Compliant surfaces

• Boundary layer blowing (gill slots)

• Micro vortex generators

• Vortex management (caudal finlets)

• Surface heating

• Mucus

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