Wednesday, 20 February 2013

How Shark Skin increases Fuel Efficiency??

It is quiet fascinating to design an aerodynamic, high energy efficient and more fuel efficient aircrafts which holds the key for saving energy and it has been time to involve the oceans oldest predator ‘shark’ in the design of these aircrafts.
     Germany’s biggest airlines Lufthansa took an initiative for trails of shark skin paints on their airbuses. Some rough estimations for engineers said that if an aircraft was covered by 40-70% of shark skin paint, it could reduce the fuel consumption by 1%.
     The sharks skin is covered in tiny riblets that reduce turbulent vortices and drag they cause and thereby reducing the surface resistance when moving at high speeds. This phenomenon of stream line shark skin had been known for about 30 years and it is found in various applications in diverse fields like aeronautics, military aircraft designs and development of high swimsuits.




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