Design and Analysis of a Wind Turbine Blade with Dimples to Enhance the Efficiency through CFD with ANSYS R16.0

M Rajaram Narayanan,M Ragesh Sathiyan,S Nallusamy,Dong-Won Jung

doi:10.1051/matecconf/201820702004

M Rajaram Narayanan, M Ragesh Sathiyan + Show 2 more

Open Access

https://doi.org/10.1051/matecconf/201820702004

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Abstract

In the global scenario, wind turbines and their aerodynamics are always subjected to constant research for increasing their efficiency which converts the abundant wind energy into usable electrical energy. In this research, an attempt is made to increase the efficiency through the changes in surface topology of wind turbines through computational fluid dynamics. Dimples on the other hand are very efficient in reducing air drag as is it evident from the reduction of drag and increase in lift in golf balls. The predominant factors influencing the efficiency of the wind turbines are lift and drag which are to be maximized and minimized respectively. In this research, surface of turbine blades are integrated with dimples of various sizes and arrangements and are analyzed using computational fluid dynamics to obtain an optimum combination. The analysis result shows that there is an increase in power with about 15% increase in efficiency. Hence, integration of dimples on the surface of wind turbine blades has helped in increasing the overall efficiency of the wind turbine.

Highlights

IntroductionMomentum method is the annual stream tubes are independent [36,37,38,39]. by using this methodology along with the Reynolds averaged navier-stokes equations a near to actual result can be obtained
In the global scenario, wind turbines and their aerodynamics are always subjected to constant research for increasing their efficiency which converts the abundant wind energy into usable electrical energy
Based on the above an attempt was made to increase the efficiency by changes in surface topology of wind turbine blades by computational fluid dynamics (CFD) and ANSYS R 16.0

Summary

Introduction

Momentum method is the annual stream tubes are independent [36,37,38,39]. by using this methodology along with the Reynolds averaged navier-stokes equations a near to actual result can be obtained.

Dimples

CFD Analysis

Results and Discussion

Analysis of Torque and Power

Conclusions