Study of NACA 0015 for Diffuser Design in Tidal Current Turbine Applications
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 25، شماره: 4
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 821
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شناسه ملی سند علمی:
JR_IJE-25-4_034
تاریخ نمایه سازی: 17 خرداد 1393
چکیده مقاله:
Tidal energy is the most foreseeable form of renewable energy. Tidal energy can be harnessed by tidal barrage, tidal fence and tidal current technologies. Present efforts are focused on diffuser augmentedtidal turbines that exploit the kinetic energy of the tidal currents. Power generated by a tidal currentturbine is due to the cubic relationship between power and flow velocity. A minor increase in flow velocity can significantly increase the power output. A diffuser is a device that can help in stimulating flow velocity. Incorporating a diffuser around a turbine can increase the efficiency of the tidal turbine.Many research groups are investing considerable time and financial resources in this emerging domain. Limited results are available for diffuser augmented tidal turbines due to their emerging nature, large and costly research and development setup, startup cost and proprietary issues. The purpose of thispaper is to study a NACA 0015 airfoil for diffuser design for tidal current turbines. Numerical simulation of the diffuser is carried out to check the velocity and mass flow rate at throat. The drag, for various NACA 0015 diffuser models is also calculated on the diffuser.
کلیدواژه ها:
Diffuser Augmented Tidal Turbine ، Ducted Turbine ، Shrouded Turbine ، Numerical Simulation of Diffuser ، CFD Simulation of Diffuser
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