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以新担当新作为推进正风反腐
文章鉴赏 ARTICLE APPRECIATION In recent years, helicopter manufacturers have developed an increasing number of nonconventional configurations in order to extend flight envelopes of helicopters towards higher cruise speed. Airbus H
A CFD-Based Examination of Rotor-Rotor Separation Effects on Interactional Aerodynamics for eVTOL Ai
This study systematically investigates the aerodynamic interactions of a two-rotor system with a front rotor and an aft rotor aligned with the direction of flow. The rotors are 5.5 ft diameter fixed-p In the context of the development of high-speed compound helicopters, the main rotor may not be an efficient propulsive device at high speeds and adding a propulsive propeller is a means to enable hig The predictions of an upgraded UMARC comprehensive analysis are compared to experimental lift offset rotor results. The experiments cover a range of collective pitch angles (θ◦) from 2◦ to 10◦, advanc Numerical Investigation of Unsteady Boundary Layer Transition on a Dynamically Pitching Rotor A Computational Studyon Rotor and Fuselage Configuration Effect on Rotorcraft Brownout Invited Paper Rotorcraft Design: The Crucial Influence of Safety from Concept to Fleet Support .pdf 信息发布 INFORMATION DELIVERY |
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