some practical issues in the computational design of airfoils for the helicopter main rotor blades
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ID: 254558
2004
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Abstract
Very important requirement for the helicopter rotor airfoils is zero, or nearly zero moment coefficient about the aerodynamic center. Unlike the old technologies used for metal blades, modern production involving application of plastic composites has imposed the necessity of adding a flat tab extension to the blade trailing edge, thus changing the original airfoil shape. Using computer program TRANPRO, the author has developed and verified an algorithm for numerical analysis in this design stage, applied it on asymmetrical reflex camber airfoils, determined the influence of angular tab positioning on the moment coefficient value and redesigned some existing airfoils to include properly positioned tabs that satisfy very low moment coefficient requirement. .
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ivan2004theoreticalsome
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| Authors | ;Kostić Ivan |
| Journal | timisoara journal of economics and business |
| Year | 2004 |
| DOI |
10.2298/TAM0404281K
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