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*The rotor is considered ideal, having an infinite number of blades and no drag.
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*The rotor is considered ideal, having an infinite number of blades and no drag.<br>
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*The flow into and out of the rotor is axial and in accordance conservation equations.<br>
 
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*The flow into and out of the rotor is axial and in accordance conservation equations.
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*The fluid is modeled based on incompressible flow.
 
*The fluid is modeled based on incompressible flow.
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The Betz limit has been able to predicted the maximum value for the power coefficient to be 0.593. This means that the theoretical limit of power removed from from the fluid is 59.3%, although current commercial wind turbines are able to achieve 40 - 50% conversion efficiency.  
 
The Betz limit has been able to predicted the maximum value for the power coefficient to be 0.593. This means that the theoretical limit of power removed from from the fluid is 59.3%, although current commercial wind turbines are able to achieve 40 - 50% conversion efficiency.  
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=== <br>'''Angle of blade and the resulting forces to spin the blades versus surface area exposed'''  ===
 
=== <br>'''Angle of blade and the resulting forces to spin the blades versus surface area exposed'''  ===
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