Blade Element Momentum Theory
Blade element momentum theory (BEM) is a fundamental method for analyzing rotor performance by combining blade element aerodynamics with momentum conservation. Developed initially by Froude and refined by Glauert and Leishman, BEM decomposes a rotor into radial blade elements, computes local aerodynamic forces, and sums contributions to predict total thrust, torque, power, and efficiency. BEM is standard for helicopter, wind turbine, and propeller design.
Zdrojový záznam
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- Froude, W. (1889). On the elementary relation between pitch, slip, and propulsive efficiency. Transactions of the Institution of Naval Architects, 30, 94–103. · URL
- Glauert, H. (1935). The Elements of Aerofoil and Airscrew Theory. Cambridge University Press. · URL
- Leishman, J. G. (2006). Principles of Helicopter Aerodynamics (2nd ed.). Cambridge University Press. · URL
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