国家自然科学基金(s10832001)

作品数：5被引量：23H指数：3
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Effects of sinusoidal leading edge on delta wing performance and mechanism被引量：4
《Chinese Science Bulletin》2013年第7期772-779,共8页CHEN Huang PAN Chong WANG JinJun 
supported by the National Natural Science Foundation of China (Grant Nos. 10832001 and 11002015)
Lift and drag characteristics of delta wings with low swept angle and various sinusoidal leading edges(SLE) were investigated in a wind tunnel.Three amplitudes and three wavelengths of SLE were tested.It is revealed t...
关键词：三角翼 前缘 正弦 最大升力系数 机理 性能 失速延迟 SLE 
Dynamic mode decomposition of hairpin vortices generated by a hemisphere protuberance被引量：8
《Science China(Physics,Mechanics & Astronomy)》2012年第1期118-124,共7页TANG ZhanQi JIANG Nan 
supported by the National Natural Science Foundation of China (Grant Nos. 10832001 and 10872145);the State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences
We present dynamic mode decomposition (DMD) for studying the hairpin vortices generated by hemisphere protuberance measured by two-dimensional (2D) time-resolved (TR) particle image velocimetry (PIV) in a water channe...
关键词：hairpin vortices hemisphere protuberance time-resolved particle image velocimetry dynamic mode decomposition proper orthogonal decomposition 
Experimental investigation of Reynolds stress complex eddy viscosity model for coherent structure dynamics被引量：9
《Science China(Physics,Mechanics & Astronomy)》2011年第7期1319-1327,共9页JIA YongXia TANG ZhanQi JIANG Nan 
supported by the National Natural Science Foundation of China (Grant Nos. 10832001 and 10872145);Opening Subject of State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences
Time sequence signals of streamwise and normal velocity components,as well as velocity strain rate,at different vertical locations in the turbulent boundary layer over a smooth flat plate in a wind tunnel have been fi...
关键词：turbulent boundary layer coherent structure complex eddy viscosity model Reynolds stress phase difference 
Experimental study on the local similarity scaling of the turbulence spectrum in the turbulent boundary layer被引量：1
《Science China(Physics,Mechanics & Astronomy)》2009年第6期900-908,共9页XIA ZhenYan JIANG Nan TIAN Yan WANG YuChun 
Supported by the National Natural Science Foundation of China(Grant Nos.10832001 and 10872145);the Program for New Century Excellent Talents in Universities of Education Ministry of China;the Plan of Tianjin Science and Technology Development(Grant No.06TXTJJC13800)
The streamwise fluctuating velocity in the turbulent boundary layer is measured under approximately medium Reynolds Number by hot wire in order to investigate the scaling properties of the overlapped turbulent spectru...
关键词：turbulent boundary layer -1 spectrum -5/3 spectrum energy-containing eddy inertial subrange local isotropy 
Wavelet spectrum analysis on energy transfer of multi-scale structures in wall turbulence被引量：2
《Applied Mathematics and Mechanics(English Edition)》2009年第4期435-443,共9页夏振炎 田砚 姜楠 
supported by the National Natural Science Foundation of China (Nos. 10832001 and10872145);the Program for New Century Excellent Talents in Universities of Education Min-istry of China
The streamwise velocity components at different vertical heights in wall turbulence were measured. Wavelet transform was used to study the turbulent energy spectra, indicating that the global spectrum results from the...
关键词：wall turbulence wavelet spectrum turbulent kinetic energy energy-containing eddies BURST 
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