涡桨飞机发展现状及关键气动问题

doi:10.7527/S1000-6893.2018.22353

Abstract

Abstract: The distinctive propulsion device equips the turboprop aircraft with superior propulsion efficiency, excellent low-speed maneuverability as well as good take-off and landing performance, enabling it to develop constantly and occupy a significant place in military and civil fields. But at the same time, the propulsion device also brings a series of design problems that need to be focused on. Based on the current development statuses and design characteristics of the turboprop aircraft at home and abroad, the main aerodynamic problems are pointed out. The stalling and maneuvering issues during the take-off and landing processes of carrier-based turboprops that are urgently to be developed in China are studied in detail. The paper focuses on the influence of the flow separation state and developing trend around the wing surface on the stalling characteristics and maneuvering safety, summarizing the key constraints and design principles to be concerned. On this basis, through the analysis of a set of calculation examples, this paper illustrates the internal relations between the characteristics of flow field around the wing and the total aerodynamic forces. What's more, the design association of the three-dimensional high-lift configuration with the clean wing and the wing profiles at different spanwise positions is also fully expounded.

Key words: turboprop aircraft, development status, aerodynamic problems, stalling characteristics, maneuvering safety, design principles

CLC Number:

V211
V224

LI Jie, YANG Zhao, DUAN Zhuoyi, ZHANG Heng, ZHAO Shuai. Development status and key aerodynamic problems of turboprop aircraft[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(4): 622353-622353.

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Development status and key aerodynamic problems of turboprop aircraft

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