CFD analysis of a Savonius Vertical axis wind turbine

Abstract

Pakistan is among of the developing countries in the world that are facing energy crisis. The generation of electricity in Pakistan is shrinking due to an over reliance on fossil fuel resources and also due to the increasing demands for power and lack of efficiency. Due to this energy crisis, many countries have started the research and working in the renewable energy field. In the fields of renewable energy, wind energy is very attractive and has a very key role in the sustainable energy. The purpose of this research work is to analyze a Savonius Vertical axis wind turbine for low wind speed that is inexpensive and is made through easily available material to provide much needed electricity in Pakistan. This paper highlights the designing of the wind turbine and the effect on the blades. With the help of calculating values, 3D view of wind blades' shape has been drawn in the Solid works software. With the help of the Solid works generated file, optimization of the behavior of wind above and below the turbine blades have been analyzed.

Computational analysis of three blade vertical axis wind turbine

“…The computation study shows the best visualisation of wind effects on the turbine developed with single or multiple blades. Muneer et al (2015) observed that drag coefficient of the wind turbine increases with the increase in the area of the wind turbine area and decreases with the decrease in area of the wind turbine. Vassberg et al (2005) proposed one of the CFD simulation-based method using Reynolds-averaged Navier-Stokes equations.…”

“…A turbulent model is suggested for obtaining the better simulation results. Muneer et al (2015) studied the behavior of wind over the wind turbine (above and below) using the CFD analysis. The computation study shows the best visualisation of wind effects on the turbine developed with single or multiple blades.…”

“…These analytical models include momentum model, vortex model, and cascade model (Bai et al, 2014;Strickland et al, 1979;Wang et al, 2007;Hirsch and Mandal, 1987). But in recent years a computational approach based on the computational fluid dynamics (CFD) has shown a great scope for analysing the VAWT performance and behaviour of aerodynamic characteristics (Beri and Yao, 2011;McLaren et al, 2012;Muneer et al, 2015;Vassberg et al, 2005;Song et al, 2016;Petružela and Blažek, 2017;Castelli et al, 2011;Dobrev and Massouh, 2011). In this paper, a 3-blade VAWT is designed considering the aerodynamic properties.…”