Moment of Inertia Dependence of Vertical Axis Wind Turbines in Pulsating Winds

<table>Torque coefficients, <svg height="19.362499" id="M35" style="vertical-align:-5.73163pt" version="1.1" viewbox="0 0 45.387501 19.362499" width="45.387501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,5.725,12.162)"><use xlink:href="#x1D436"></use></g>
<g transform="matrix(.012,-0,0,-.012,17.713,16.25)"><use xlink:href="#x1D45E"></use></g>
<g transform="matrix(.017,-0,0,-.017,24.175,12.162)"><use xlink:href="#x28"></use></g><g transform="matrix(.017,-0,0,-.017,30.057,12.162)"><path d="M529 97q-70 -109 -136 -109q-41 0 -56 94q-23 144 -37 284q-38 -88 -99 -202.5t-93 -156.5q-26 -8 -76 -19l-9 21q71 78 145.5 193t124.5 232q-5 84 -15 128q-12 55 -29.5 75.5t-42.5 20.5q-21 0 -45 -13l-8 24q16 17 46 30t55 13q43 0 70 -46.5t40 -169.5
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</svg>, for a VAWT with NACA 0012 airfoils.</table>

International Journal of Rotating Machinery

fig4

Figure 4

Figure 4: Moment of Inertia Dependence of Vertical Axis Wind Turbines in Pulsating Winds 