云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(11272233)

国家自然科学基金(11272233): 作品数：20被引量：66H指数：5; 导出分析报告; 相关作者：姜楠管新蕾李山杨绍琼王维更多>>; 相关机构：天津大学中国科学院力学研究所石家庄经济学院更多>>; 相关期刊：《暖通空调》《Acta Mechanica Sinica》《Theoretical & Applied Mechanics Letters》《Chinese Physics B》更多>>; 相关主题：TURBULENT_BOUNDARY_LAYER壁湍流减阻相干结构粒子图像测速更多>>; 相关领域：理学环境科学与工程建筑科学航空宇航科学技术更多>>

用子波分析修正检测壁湍流猝发的VITA法被引量：2: 《实验力学》2017年第2期202-208,共7页叶阳杨凯弘姜楠; 国家自然科学基金项目(11272233);(11332006);(11572221);(11411130150)联合资助; 应用壁湍流脉动速度信号子波分析的一系列方法对检测壁湍流猝发事件的VITA法进行了修正。其中,用能量最大准则确定VITA法短时间平均周期;以子波变换能量最大尺度脉动速度的短时间平均方差的局部极大值点作为检测函数的中心点,取代了传统...; 关键词：子波分析相干结构猝发变间隔时间平均法(VITA) 门限值

Tomographic PIV investigation on coherent vortex structures over shark-skin-inspired drag-reducing riblets被引量：8: 《Acta Mechanica Sinica》2016年第2期284-294,共11页Shao-Qiong Yang Shan Li Hai-Ping Tian Qing-Yi Wang Nan Jiang; supported by the National Natural Science Foundation of China (Grants 11332006,11272233,and 11411130150);the foundation from the China Scholarship Council (CSC) (Grant 201306250092);the Foundation Project for Outstanding Doctoral Dissertations of Tianjin University; Nature has shown us that the microstructure of the skin of fast-swimming sharks in the ocean can reduce the skin friction drag due to the well-known shark-skin effect.In the present study,the effect of shark-skin-insp...; 关键词：Turbulent boundary layer（TBL） Coherent vortex structure Flow control Drag reduction Shark-skininspired riblet Tomographic particle image velocimetry（TPIV）

Predetermined control of turbulent boundary layer with a piezoelectric oscillator被引量：3: 《Chinese Physics B》2016年第1期669-673,共5页郑小波姜楠张浩; supported by the National Natural Science Foundation of China(Grant Nos.11332006,11272233,and 11411130150);the National Basic Research Program of China(Grant Nos.2012CB720101 and 2012CB720103); With a piezoelectric （PZT） oscillator, the predetermined controls of the turbulent boundary layer （TBL） are effective in reducing the drag force. The stream-wise velocities in the TBL are accurately measured downs...; 关键词：turbulent boundary layer predetermined control drag reduction piezoelectric oscillator

Study on local topology model of low/high streak structures in wall-bounded turbulence by tomographic time-resolved particle image velocimetry被引量：7: 《Applied Mathematics and Mechanics(English Edition)》2015年第9期1121-1130,共10页Haiping TIAN Nan JIANG Yongxiang HUANG Shaoqiong YANG; Project supported by the National Natural Science Foundation of China(Nos.1332006,11272233,11202122,and 11411130150);the National Fundamental Research Program of China(973 Program)(No.2012CB720101); The relationship between the in the logarithmic law （log-law） region of bursting event and the low/high-speed streak a turbulent boundary layer is investigated. A tomographic time-resolved particle image velocimetry...; 关键词：wall turbulence quadrupole topological structure hairpin vortex low/highspeed streak tomographic time-resolved particle image velocimetry （TRPIV） system

Coherent Spanwise Structures in Turbulent Boundary Layer over Drag-Reducing Riblets: 《Transactions of Tianjin University》2015年第4期317-323,共7页杨绍琼李山田海平王清毅姜楠; Supported by the National Natural Science Foundation of China(No.11332006,No.11272233 and No.11411130150);the foundation from the China Scholarship Council(CSC)(No.201306250092);the Foundation Project for Outstanding Doctoral Dissertations of Tianjin University; The time series of velocity vector fields and their statistics in the turbulent boundary layer(TBL)over riblets and smooth plate were measured by utilizing a time-resolved particle image velocimetry(TR-PIV)system. The...; 关键词：TURBULENT boundary layer passive flow control drag reduction Kelvin-Helmholtz-like INSTABILITY coherentstructure riblet particle image VELOCIMETRY

Experimental study on spectrum and multi-scale nature of wall pressure and velocity in turbulent boundary layer被引量：4: 《Chinese Physics B》2015年第6期385-394,共10页郑小波姜楠; Project supported by the National Basic Research Program of China(Grant Nos.2012CB720101 and 2012CB720103);the National Natural Science Foundation of China(Grant Nos.11272233,11332006,and 11411130150); When using a miniature single sensor boundary layer probe, the time sequences of the stream-wise velocity in the turbulent boundary layer （TBL） are measured by using a hot wire anemometer. Beneath the fully develope...; 关键词：multi-scale coherent structures hot wire anemometry MICROPHONE wavelet transform

高聚物减阻溶液对壁湍流输运过程的影响被引量：8: 《物理学报》2015年第9期397-405,共9页管新蕾王维姜楠; 国家自然科学基金重点项目(批准号:11332006);国家自然科学基金(批准号:11272233);国家自然科学基金国际合作与交流项目(批准号:11411130150);国家重点基础研究发展计划(973计划)(批准号:2012CB720101;2012CB720103)资助的课题~~; 基于相同雷诺数下清水和高分子聚合物溶液壁湍流的高时间分辨率粒子图像测速技术(time-resolved particle image velocimetry,TRPIV)的对比实验,从高聚物溶液对湍流边界层动量能量输运影响的角度分析其减阻的机理.对比两者的雷诺应力发...; 关键词：壁湍流减阻动量能量输运高聚物

The spatial-temporal evolution of coherent structures in log law region of turbulent boundary layer被引量：4: 《Acta Mechanica Sinica》2015年第1期16-24,共9页Xiao-Bo Zheng Nan.Jiang; supported by the National Natural Science Foundation of China(11332006,11272233,and 11411130150);the National Basic Research Programm of China(2012CB720101); The spatial-temporal evolution of coherent structures （CS） is significant for turbulence control and drag re- duction. Among the CS, low and high speed streak structures show typical burst phenomena. The analysis wa...; 关键词：Log law region in TBL. Spatial-temporal cross-correlation Tomographic TRPIV Coherent structures Low and high speed streaks Multi-resolution wavelet de-composition

Experimental investigation on drag reduction in turbulent boundary layer over superhydrophobic surface by TRPIV被引量：7: 《Theoretical & Applied Mechanics Letters》2015年第1期45-49,共5页Haiping Tian Jingxian Zhang Erdan Wang Zhaohui Yao Nan Jiang; supported by the National Natural Science Foundation of China(11272233,11272176,11411130150,and 11332006(key project));National Basic Research Program(973Program)(2012CB720101 and 2012CB720103); This study aims at the mechanism of drag reduction in turbulent boundary layer （TBL） with superhy- drophobic surface. Comparing the time-resolved particle image velocimetry （TRPIV） measurement results with that of...; 关键词：Superhydrophobic surfaceDrag reductionTBLTRPIVSpatial topology

壁面湍流发卡涡包空间模态的TRPIV实验研究被引量：1: 《实验力学》2015年第1期51-58,共8页成璐姜楠; 国家自然科学基金(11272233);国家自然科学基金重点项目(11332006);国家重点基础研究发展计划(973)(NO.2012CB720101;NO.2012CB720103); 运用高时间分辨率粒子图像测速(Time-resolved PIV简称TRPIV),测量得到平板湍流边界层流向/法向平面内瞬时速度矢量空间分布的时间序列;采用空间局部平均速度结构函数的概念,识别和提取湍流边界层中大尺度发卡涡包结构的空间特征。发现...; 关键词：湍流边界层高时间分辨率粒子图像测速空间局部平均速度结构函数发卡涡包

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