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(11332006)

国家自然科学基金(11332006): 作品数：16被引量：33H指数：4; 导出分析报告; 相关作者：姜楠管新蕾王维成璐沈杰更多>>; 相关机构：天津大学上海应用技术大学上海大学更多>>; 相关期刊：《Chinese Physics B》《Applied Mathematics and Mechanics(English Edition)》《Journal of Hydrodynamics》《物理学报》更多>>; 相关主题：TURBULENT_BOUNDARY_LAYER壁湍流COHERENT_STRUCTURESPIEZOELECTRICEMD更多>>; 相关领域：理学一般工业技术更多>>

有限系统中两组分颗粒凝并问题的异权值蒙特卡罗模拟: 《上海大学学报（自然科学版）》2020年第4期617-627,共11页左昊沈杰卢志明; 国家自然科学基金资助项目(11332006,11272196)。; 对于两组分颗粒系统,某组分A在整个颗粒群中的混合均匀程度是一个非常重要的物理量。采用异权值蒙特卡罗方法研究有限系统中凝并核与组分相关的两组分颗粒凝并混合程度问题。首先,验证了核函数齐次性指数λ对系统凝并混合的影响,并得到...; 关键词：两组分有限系统组分相关分散指数齐次性

非牛顿流体在渐变管中压力和剪切应力的二次摄动解被引量：4: 《力学季刊》2019年第3期613-625,共13页邱翔郭宇飞李家骅傅渊罗剑平; 国家自然科学基金(11332006,11572203); 本文利用双摄动方法求解缓慢变化管道中Johnson-Segalman(J-S)流体流动的渐近解.将管道的扩张(或收缩)角度和粘弹性参数分别作为双摄动的参数,由流函数和涡量函数的形式,推导出压力和壁面剪切应力的渐近解.在此基础上,分析了管道角度,...; 关键词：非牛顿流体双摄动方法 Johnson-Segalman流体压力分布切应力分布

基于IB-LBM的圆柱尾流与壁面湍流之间的涡旋相互作用被引量：1: 《水动力学研究与进展（A辑）》2018年第6期731-735,共5页邱翔熊鑫夏玉显罗剑平; 国家自然科学基金项目(11332006,11572203);上海应用技术大学引进人才基金资助项目(YJ2017-13);2018年广西高校中青年教师基础能力提升项目(2018ky0901)~~; 该文使用IB-LBM研究了二维槽道中圆柱的尾流与壁湍流之间涡的相互作用。在壁面处出现边界层,同时由于边界层的不稳定性在壁面边界附近产生二级涡。边界层通过“ejection”过程向外喷发涡旋结构。尾流与湍流边界层之间相互作用形成的偶...; 关键词：涡的相互作用 IB-LBM 尾流壁湍流

Coherent structures over riblets in turbulent boundary layer studied by combining time-resolved particle image velocimetry(TRPIV),proper orthogonal decomposition(POD),and finite-time Lyapunov exponent(FTLE)被引量：4: 《Chinese Physics B》2018年第10期395-404,共10页Shan Li Nan Jiang Shaoqiong Yang Yongxiang Huang Yanhua Wu; Project supported by the National Natural Science Foundation of China(Grant Nos.11332006,11732010,11572221,and 11502066);the Natural Science Foundation of Tianjin City(Grant No.18JCQNJC5100); Time-resolved particle image velocimetry（TRPIV） experiments are performed to investigate the coherent structure＇s performance of riblets in a turbulent boundary layer（TBL） at a friction Reynolds number of 185. To...; 关键词：turbulent boundary layer RIBLETS proper orthogonal decomposition finite-time Lyapunov exponent

Active control of wall-bounded turbulence for drag reduction with piezoelectric oscillators被引量：2: 《Chinese Physics B》2018年第7期397-403,共7页Jian-Xia Bai Nan Jiang Xiao-Bo Zheng Zhan-Qi Tang Kang-Jun Wang Xiao-Tong Cui; Project supported by the National Natural Science Foundation of China(Grant Nos.11332006,11732010,11572221,and 11502066); An experimental investigation was performed for active control of coherent structure bursting in the near-wall region of the turbulent boundary layer. By means of synchronous and asynchronous vibrations with double pi...; 关键词：turbulent boundary layer active control double piezoelectric vibrators

Asymptotic solutions of the flow of a Johnson-Segalman fluid through a slowly varying pipe using double perturbation strategy被引量：1: 《Applied Mathematics and Mechanics(English Edition)》2018年第2期169-180,共12页Xinyin ZOU Xiang QIU Jianping LUO Jiahua LI P.N.KALONI Yulu LIU; supported by the National Natural Science Foundation of China(Nos.11572203 and11332006); A double perturbation strategy is presented to solve the asymptotic solutions of a Johnson-Segalman （J-S） fluid through a slowly varying pipe. First, a small parameter of the slowly varying angle is taken as the sma...; 关键词：Johnson-Segalman （J-S） fluid slowly varying pipe double perturbationstrategy velocity distribution

Energy dissipation statistics along the Lagrangian trajectories in three-dimensional turbulent flows被引量：1: 《Journal of Hydrodynamics》2018年第1期169-172,共4页罗剑平王永博邱翔夏玉显刘宇陆; Project supported by the National Natural Science Foundation of China(Grant Nos.11572203,11332006); Energy dissipation rate is relevant in the turbulent phenomenology theory, such as the classical Kolmogorov 1941 and1962 refined similarity hypothesis. However, it is extremely difficult to retrieve experimentally or ...; 关键词：SWEEP EJECTION dispersion quadrant analysis turbulent channel flow

Vortex shedding in the flow around two side-by-side circular cylinders of different diameters被引量：2: 《Journal of Hydrodynamics》2017年第3期470-478,共9页邱翔毕贞晓罗剑平刘宇陆; supported by the National Natural Science Foundation of China(Grant Nos.11572203,11332006);the Innovation Program of Shanghai Municipal Education Commission(Grant No.13YZ124); In this paper,the 3-D turbulent flow around two side-by-side circular cylinders of different diameters,at sub-critical Reynolds number（Re=3 900）,is numerically simulated by the large eddy simulation（LES）.The spaci...; 关键词：Large eddy simulation（LES） drag and lift coefficients vortex shedding frequency empirical mode decomposition（EMD）

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

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

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