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SIMPLE BLADE-ELEMENT THEORY [1 record]
Record 1 - internal organization data 1985-07-23
Record 1, English
Record 1, Subject field(s)
- Aircraft Propulsion Systems
Record 1, Main entry term, English
- blade-element theory
1, record 1, English, blade%2Delement%20theory
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- Drzewiecki theory 1, record 1, English, Drzewiecki%20theory
correct
- Drzewiecki blade element theory 2, record 1, English, Drzewiecki%20blade%20element%20theory
- simple blade-element theory 2, record 1, English, simple%20blade%2Delement%20theory
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Two theories are recognized on the operation of a propeller in converting engine shaft torque to thrust. The momentum theory deals with the energy exchange to the air mass acted upon by the propeller. The other and most commonly used concept in determining propeller performance is the blade element theory. In this theory (known as the Drzewiecki theory), each propeller blade is considered as being composed of an infinite number of airfoils (called blade elements) joined end to end, forming a shape similar to a twisted airplane wing. 3, record 1, English, - blade%2Delement%20theory
Record 1, French
Record 1, Domaine(s)
- Propulsion des aéronefs
Record 1, Main entry term, French
- méthode des sections élémentaires
1, record 1, French, m%C3%A9thode%20des%20sections%20%C3%A9l%C3%A9mentaires
feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- théorie de l'élément de l'hélice propulsive 2, record 1, French, th%C3%A9orie%20de%20l%27%C3%A9l%C3%A9ment%20de%20l%27h%C3%A9lice%20propulsive
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les explications théoriques sur le fonctionnement de l'hélice peuvent être présentées de deux façons différentes : une façon synthétique où l'on jette un regard d'ensemble sur les phénomènes auxquels donne lieu son action. Cette méthode a l'avantage de convenir aussi à la propulsion par réaction. (...) La seconde méthode, méthode analytique appelée aussi méthode des sections élémentaires, consiste à décomposer l'hélice en ses éléments et à étudier le mode d'action de chacun d'eux. 1, record 1, French, - m%C3%A9thode%20des%20sections%20%C3%A9l%C3%A9mentaires
Record 1, Spanish
Record 1, Textual support, Spanish
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