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titleUnsteady aerodynamic characteristics of wings in ground effect
Other TitleUnsteady aerodynamic characteristics of wings in ground effect
Author(jpn)松崎 隆久; 吉岡 修哉; 加藤 琢真; 小濱 泰昭
Author(eng)Matsuzaki, Takahisa; Yoshioka, Shuya; Kato, Takuma; Kohama, Yasuaki
Author Affiliation(jpn)東北大学 工学部 機械航空工学科; 東北大学流体科学研究所; 東北大学流体科学研究所; 東北大学流体科学研究所
Author Affiliation(eng)Tohoku University Department of Mechanical Engineering, Faculty of Engineering; Institute of Fluid Science, Tohoku University; Institute of Fluid Science, Tohoku University; Institute of Fluid Science, Tohoku University
Issue Date2008-02-29
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication title境界層遷移の解明と制御研究会講演論文集 第40回
Proceedings of the 40th JAXA Workshop on Investigation and Control of Boundary-Layer Transition
Start page53
End page56
Publication date2008-02-29
AbstractIn spite of the great deal of effort has been made on researching the ground effect in the steady condition, little attention has been given to the ground effect in the unsteady condition. This paper is, therefore, intended as an investigation of the force generated and the flow around the wing when it undergoes unsteady movement at constant speed near the ground. And then it was proven that unsteady aerodynamic characteristics exist in the ground effect when moving in the direction of the height. The cause of these unsteady phenomena was the influence of the induced velocity. The induced velocity is derived from the starting vortex keeping on generating because the circulation around the wing continuously carried on changing when moving heightwise near the ground.
DescriptionJAXA Special Publication
Keywordsunsteady aerodynamics; aerodynamic characteristic; wing-in-ground effect vehicle; airfoil; ground effect; aerotrain; unsteady flow; angle of attack; aerodynamic drag; lift; vortex; 非定常空気力学; 空力特性; 地面効果翼機; 翼型; 地面効果; エアロトレイン; 非定常流; 迎角; 空力抵抗; 揚力; 渦
Document TypeConference Paper
JAXA Category特別資料
Report NoJAXA-SP-07-026E

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