INVESTIGATION OF THE INFLUENCE OF DISTRIBUTED PROPULSION ON THE STRUCTURE OF A SEPARATED FLOW AROUND A TRAPEZOIDAL MODEL OF A FLYING WING

IF 0.5 4区 工程技术 Q4 MECHANICS
A. M. Pavlenko, B. Yu. Zanin, E. A. Melnik, N. S. Alpatskiy
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引用次数: 0

Abstract

The paper presents the results of an experimental study of the influence of distributed engines mounted downstream of the trailing edge on the structure of a separated flow around a trapezoidal model of a flying wing in a subsonic wind tunnel. Visualization patterns of the near-wall flow on the leeward side of the model are obtained in the modes of blocked engines and for the rotational speed of the impeller of 32800 rpm in the range of angles of attack of the wing \(\alpha = 5{-}20^\circ\). The studies also take into account the location of distributed propulsion relative to the level of the trailing edge, where the axis of rotation of the engine impeller coincided with the continuation of the wing chord line or is higher than that. The possibility of controlling a separated flow by using sources of stationary disturbances in the form of cones and ribs locally mounted at singular points on the wing surface is studied.

Abstract Image

研究分布式推进对梯形飞翼模型周围分离流结构的影响
摘要 本文介绍了在亚音速风洞中,安装在后缘下游的分布式发动机对飞行翼梯形模型周围分离流结构影响的实验研究结果。在机翼攻角(\α = 5{-}20^\circ\ )范围内,在阻塞发动机模式和叶轮转速为 32800 rpm 时,获得了模型背风面近壁流动的可视化模式。研究还考虑了分布式推进相对于后缘水平的位置,即发动机叶轮的旋转轴与机翼弦线的延续线重合或高于后者。研究还探讨了利用安装在翼面奇异点上的锥形和肋形静止扰动源控制分离流的可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.20
自引率
16.70%
发文量
43
审稿时长
4-8 weeks
期刊介绍: Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.
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