SHARK SKIN DRAG REDUCTION
Ana María Araújo Cordero
Materials
Results
Introduction
Summary
References
Questions
10 min
- Bhushan, B. (2011). Biomimetics inspired surfaces for drag reduction and oleophobicity/philicity. Beilstein Journal of nanotechnology(2), 66-84.
- Dean, B., & Bhushan, B. (2010). Shark-skin surface for fluid-drag reduction in turbulent flow: a review. The royal society(368), 4775-4806.
- Oeffner, J., & Lauder, G. V. (2011). The hydrodynamic function of shark skin and two biomimetic applications. The Journal of Experimental Biology(215), 785-795.
- Quantified the possible locomotion benefits of the surface denticles on the skin
- Analized swimming performance of two biomimetic shark skin inspired materials
- Speedo fastskin fabric
- Ribbed rubber engineering material
- Shark denticles had no beneficial effects on locomotion on the rigid shark skin foil
- Denticles did improve swimming performance (12.4%) on a flexible shark skin membrane foil
- No drag reduction was achieved with the Speedo material
- Engineered riblet material has drag reduction
- High performance surfaces
- Shark skin is covered small dermal denticles.
- Reduce vortices formation
- Drag reduction->Water moves efficiently
- Protection from marine fouling -> adhesion and growth of marine organisms
Materials and methods