A tidal turbine blade

Siddharth Kulkarni (Inventor), Craig Chapman (Inventor), Hanifa Shah (Inventor)

Research output: Patent


A caudal fin shaped blade for use on a horizontal axis tidal current turbine is designed by bio-mimicking the Blue Marlin fish caudal fin. A method for forming the blade includes the steps of defining a traditional horizontal axis tidal turbine using a symmetrical airfoil comprising nine airfoil stations placed at 10 percent of the blade, determining a twist angle distribution by creating a twist angle distribution rule for root airfoil and tip airfoil and using a third order polynomial function passing through the centre of each airfoil to twist the blade from root airfoil to tip airfoil.
Original languageEnglish
Patent numberGB2532989A
Filing date5/12/14
Publication statusPublished - 8 Jun 2016


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