Study on the Removal of the Harmful Drag by Controlling the Interference of Boundary-Layer Flows
Study on the Removal of the Harmful Drag by Controlling the Interference of Boundary-Layer Flows
批准号:
14550139
负责人:
WATANABE Hideo
金额:
$2.05万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2002
资助国家:
日本
项目状态:
已结题
起止时间:
2002 至 2004
中文摘要
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英文摘要
1.Aerotrain is a new type vehicle under development by us, which applies a wing-in-ground effect. It has vertical side wings at the tips of main wings arranged in tandem to regulate automatically its lateral position in a guide way by the wing-in-ground effect between the side wing and the side wall. We performed a series of experiments to improve the performance of Aerotrain by controlling side-wing/wing interaction. Attaching a fillet in the sharp corner of the side-wing/wing combination model, we could considerably improve the aerodynamic characteristics of the model, that is, the drag of the model was decreased and the lift was increased remarkably. As for the lift, the effect of the fillet could be evaluated by separating it from the ground effect.2.Using a double chamber type small wind tunnel, we conducted an experiment with a small axial-flow fan to improve its performance. When installing a bell mouse on the suction side of the fan, the condition of the inlet flow was improved and the efficiency of the fen rose substantially. But, guide vanes which were installed in the exit of the impeller improved the performance too much.3.Fluid-force characteristics of a circular cylinder (a main cylinder) affected by a smaller one (a subcylinder) in close proximity to it were studied experimentally. The relative position of both cylinder changed pressure distribution on the main cylinder and its drag coefficient remarkably. Especially, the effect was very large when the subcylinder was put near the front of the main cylinder. Sometimes, large lift force was produced by the interaction with two cylinders. These mechanisms were made clear by visualizing the flow around two cylinders with a smoke-wire method.
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Wing-wing Flow Interaction of the Aero-Train,
航空列车的翼翼流相互作用,
DOI:
--
发表时间:
2003
期刊:
The 2003 Division of Fluid Dynamics Annual Meeting,Nov.23-25,2003,New Jersey,USA.
影响因子:
--
作者:
[Dong-hee Yoon, Yasuaki Kohama, Takuma Kato]
通讯作者:
Takuma Kato
Improvement in Performance of Aerotrain by Controlling Side-Wing/Wing Interaction
通过控制侧翼/机翼相互作用提高航空列车的性能
DOI:
--
发表时间:
2003
期刊:
Trans.Jpn.Soc.Mech.Eng.(in Japanese) 69-686
影响因子:
--
作者:
[H.Watanabe, F.Ohta, S.Kikuchi, Y.Kohama]
通讯作者:
Y.Kohama
加藤琢真, 伊藤靖, 中橋和弘, 菊地聡, 小濱泰昭: "エアロトレインの空力解析について"日本流体力学会年会2002講演論文集. 108-109 (2002)
Takuma Kato、Yasushi Ito、Kazuhiro Nakahashi、Satoshi Kikuchi、Yasuaki Kohama:“关于航空列车的空气动力学分析”日本流体力学学会年会 2002 年会议记录。108-109 (2002)
DOI:
--
发表时间:
期刊:
影响因子:
--
作者:
[]
通讯作者:
Improvement of the Aerotrain Aerodynamic Performance by Controlling Wing Interactions
通过控制机翼相互作用改善航空列车气动性能
DOI:
--
发表时间:
2004
期刊:
Trans.Jpn.Soc.Mech.Eng.(in Japanese) 70-694
影响因子:
--
作者:
[D.Yoon, H.Watanabe, Y.Kohama, S.Kikuchi]
通讯作者:
S.Kikuchi
Wing-wing Flow Interaction of the Aero-Train
航空列车的翼翼流相互作用
DOI:
--
发表时间:
2003
期刊:
The 2003 Division of Fluid Dynamics Annual Meeting, Nov.23-25,2003,New Jersey, USA
影响因子:
--
作者:
[D.Yoon, Y.Kohama, T.Kato]
通讯作者:
T.Kato
共 19 条
A Wakan Comparative Study of Ancient Chinese Thoughts on Manners and Music and an anthology of Waka (Japanese poems) selected and edited by the Japanese Emperors
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批准号:22520176
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.0万
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财政年份:2010
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负责人:WATANABE Hideo
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依托单位:
Microstructure of RPV steels under dynamic irradiation environment
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批准号:20360420
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$11.73万
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财政年份:2008
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负责人:WATANABE Hideo
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依托单位:
A Wakan Comparative Study of Ancient Chinese Thoughts on Manners and Music and an anthology of Waka (Japanese poems) selected and edited by the Japanese Emperors
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批准号:19520146
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.25万
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财政年份:2007
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负责人:WATANABE Hideo
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依托单位:
A study in the Edo era about the formation and a change of a local market in North Japan
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批准号:16520380
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.22万
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财政年份:2004
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负责人:WATANABE Hideo
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依托单位:
Effects of Ion Irradiation on Laser Welded V-4Cr-4Ti Alloy
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批准号:15560717
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.11万
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财政年份:2003
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负责人:WATANABE Hideo
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依托单位:
A Basic Research on "shi-dai," in the Heian Periodo
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批准号:13610503
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$0.64万
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财政年份:2001
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负责人:WATANABE Hideo
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依托单位:
EFFECTS OF HYDROGEN AND HELIUM INPLANTATION ON FUSION REACTOR MATERIALS AND ITS MECANICAL PROPERTIES
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批准号:10680474
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.92万
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财政年份:1998
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负责人:WATANABE Hideo
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依托单位:
A Study of Historical Water Transportation at Edo era and Modern age in Japan
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批准号:10610316
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.54万
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财政年份:1998
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负责人:WATANABE Hideo
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依托单位:
Development of an Extracorporeal Circulation System with a Vibrating Flow Pump Driven Electromagnetically
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批准号:06555052
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项目类别:Grant-in-Aid for Scientific Research (A)
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资助金额:$8.19万
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财政年份:1994
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负责人:WATANABE Hideo
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依托单位:
Grant-in-Aid for General Scientific Research (C)
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批准号:04610191
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项目类别:Grant-in-Aid for General Scientific Research (C)
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资助金额:$1.02万
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财政年份:1992
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负责人:WATANABE Hideo
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依托单位: