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直升机旋翼空气动力学的发展
Progress of Helicopter Rotor Aerodynamics
【摘要】 本文分两大部分 ,即旋翼理论分析的发展 (认识旋翼 )及旋翼桨叶外形的发展 (改造旋翼 )。在第一部分中 ,阐述了旋翼滑流理论、叶素理论、涡流理论 (其中又包括固定尾迹的经典涡流理论、预定尾迹的半经验涡流理论、自由尾迹的现代涡流理论 )和旋翼 CFD方法。在第二部分中 ,讨论了旋翼桨叶的翼型、桨尖形状、扭转角分布等的变化历程。最后 ,作为总结 ,提出了旋翼理论分析和桨叶气动外形的四代发展阶段的划分。
【Abstract】 There are two parts in this paper, i.e., the progress o f the rotor theoretical analysis (understand rotor) and the progress of the roto r blade aerodynamic shape (change rotor). In the first part, the rotor slipstre am theory, b lade element theory, vortex theory (including rigid-wake classical vortex theor y, prescribed-wake semi-empirical vortex theory as well as free-wake modern v ortex theory) and rotor CFD method are described. In the second part, the histor ical developments of the rotor blade airfoil, blade tip shape and blade twist ar e reviewed. Finally, as a conclusion, four generations in the developments of th e rotor theoretical analysis and blade aerodynamic shape are presented.
【Key words】 rotor aerodynamics; helicopters; rotors; vortex theory; airfoil; blade tip shape; twist angle;
- 【文献出处】 南京航空航天大学学报 ,Journal of Nanjing University of Aeronautics & Astronautics , 编辑部邮箱 ,2001年03期
- 【分类号】V211.52;V211.46
- 【被引频次】172
- 【下载频次】2331