[1]丁汉新,范宝春,周本谋,等.圆柱绕流的边界层及其电磁控制[J].南京理工大学学报(自然科学版),2005,(03):308-311.
 DING Han-xin,FAN Bao-chun,ZHOU Ben-mou,et al.Boundary Layer of Flow Around Cylinder and Its Electromagnetic Control[J].Journal of Nanjing University of Science and Technology,2005,(03):308-311.
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圆柱绕流的边界层及其电磁控制
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2005年03期
页码:
308-311
栏目:
出版日期:
2005-08-30

文章信息/Info

Title:
Boundary Layer of Flow Around Cylinder and Its Electromagnetic Control
作者:
丁汉新范宝春周本谋陈志华
南京理工大学动力工程学院, 江苏南京210094
Author(s):
DING Han-xin FAN Bao-chun ZHOU Ben-mou CHEN Zhi-hua
School of Power Engineeing, NUST, Nanjing 210094, China
关键词:
电磁流体力学 流体控制 圆柱尾
Keywords:
electrom agnetic hydrom echan ics flow control cy linderw ak
分类号:
O361
摘要:
利用电介质溶液中圆柱体侧表面附近分布的电磁产生电磁力,作用于流体边界层,达到控制圆柱绕流的目的。在层流模式下(Re<150),采用极坐标系中NavierStokes方程的涡量-流函数形式,对置于弱电介质溶液中包覆电磁场激活板的圆柱绕流的尾迹和边界层的速度分布进行了数值研究。涡量传输方程采用ADI(隐式交替)格式,流函数方程采用FFT(快速傅里叶变换)格式,计算结果具有二阶空间精度和一阶时间精度,作了相应的实验,对实验结果进行了分析和讨论。
Abstract:
The e lectromagnet ic forces generated by the e lectromagnetic field and localized around the c ircular cy linder surface are used to mod ify the boundary layer of flow and to con tro l the flow field structure of the circu lar cylinder f low. The circular cy linder are covered w ith electromagne tic actuators and located in electro lyte so lut ion at low Renau lts (R e< 150) . Based on the vortic ity-stream funct ion formu la tion o f the Nav ier-Stokes equat ions, and by adopting the exponentia-l po lar coordinates, the numerica l investigat ions on thew ake of cy linder and the ve loc ity distribution o f the boundary are performed. TheA lternative- D irection Implicit algo rithm for the vo rt ic ity transpo rt equation, and the Fast Fourier Transfo rm algo rithm for the stream function equation are used w ith the accuracy of second order in space and first order in t ime. The correspond ing exper iments are carried out and the ir resu lts are ana lyzed.

参考文献/References:

[ 1 ] Gailitis A, L ie lausis O. On a possib ility to reduce the hydrodynam ica l resistance o f a plate in an electro lyte[ J]. AppliedM agnetohydrodynam ics, 1961, 12: 143- 146.
[ 2] H enoch C, Stace J. Experim enta l investigation o f a salt w ater turbulent boundary lay er mod ified by an applied streamw ise m agnetohydrodynam ic body force [ J]. Phys Flu ids, 1995, 7( 6): 1 371- 1 3 82.
[ 3] W e ier T, Gerbe th G, Mu tschkeG, e t al. Experim ents on cy linder w ake stabiliza tion in an electro ly te so lution by m eans o f e lec trom agnetic fo rces localized on the cy linder surface [ J]. Exper im enta l Therm al and F lu id Science, 1998, 16: 84- 91.
[ 4] K im S J, Lee C M. 2000. Investiga tion o f the flow around a c ircular cy linder unde r the influence o f an e lectromagne tic fie ld[ J]. Exp. Fluids, 2000, 28: 252- 260.
[ 5] 陈志华, 范宝春. 包覆电磁场激活板的圆柱尾迹的数值研究[ J]. 力学学报, 2002, 23( 6): 473- 477.
[ 6] 范宝春, 姜孝海, 叶经方. 电磁力的消涡减阻[ J]. 兵工学报, 2003, 24( 1): 57- 62.

相似文献/References:

[1]张辉,范宝春,陈耀慧,等.用于流体边界层控制的电磁场计算[J].南京理工大学学报(自然科学版),2008,(01):23.
 ZHANG Hui,FAN Bao-chun,CHEN Yao-hui,et al.Simulation of Electromagnetic Fields on Flow Boundary Layer Control[J].Journal of Nanjing University of Science and Technology,2008,(03):23.

备注/Memo

备注/Memo:
项目名称: 国防科工委基础研究项目
作者简介: 丁汉新( 1980- ) , 男, 硕士生, 主要研究方向: 工程力学; 通讯联系人: 范宝春, 教授, 博士生导师, E-m a il:bcfan@ m a il. njust. edu. cn。
更新日期/Last Update: 2013-03-03