Aerodynamic Shape Optimization of a Vertical-Axis Wind Turbine Using Differential Evolution

<table>Optimized NACA 4-series airfoil geometry (<svg height="10.9125" id="M161" style="vertical-align:-0.17555pt" version="1.1" viewbox="0 0 63.849998 10.9125" width="63.849998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.9125)">
<g transform="translate(72,-63.27)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜎</tspan>
<tspan style="font-size: 12.50px; " x="10.802592" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="22.842981" y="0">0</tspan>
<tspan style="font-size: 12.50px; " x="29.094481" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="32.22023" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="38.471729" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="44.723232" y="0">3</tspan>
</text>
</g>
</g>
</svg>), 2nd test case.</table>

International Scholarly Research Notices

fig20

Figure 20

Figure 20: Aerodynamic Shape Optimization of a Vertical-Axis Wind Turbine Using Differential Evolution 