Experimental investigation of free surface MHD flow around a cylinder

HAN Dong; HUANG Hu-ling; ZHANG Yan; LI Hui

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Experimental investigation of free surface MHD flow around a cylinder

更新时间：2026-07-07

- Experimental investigation of free surface MHD flow around a cylinder
- Vol. 23, Issue 2, (2008)
- 作者机构：
  
  1. 南京航空航天大学能源与动力学院,南京,210016
  2. 南京航空航天大学高新技术研究院,南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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HAN Dong, HUANG Hu-ling, ZHANG Yan, et al. Experimental investigation of free surface MHD flow around a cylinder[J]. 2008, 23(2).
DOI：

HAN Dong, HUANG Hu-ling, ZHANG Yan, et al. Experimental investigation of free surface MHD flow around a cylinder[J]. 2008, 23(2). DOI：

摘要

利用PIV(Particle image velocimetry)光学测量系统

在雷诺数分别为7 767和11 60时

实验研究了磁场对绕流圆柱的自由表面流动的影响.实验研究结果表明

磁场使边界层内的无量纲平均速度分布偏离对数分布

尾迹变窄变短

分离点向后移;当雷诺数增加到11 60时

在相同磁场强度作用下

磁场的影响减弱

从而使边界层内的无量纲平均速度分布偏离对数分布的程度减小.

Abstract

The effects of magnetic field on the free surface flow around a cylinder were investigated experimentally using the PIV(particle image velocimetry) under Reynolds number 7767 and 11650.The experimental result revealed that the field enabled the distribution of nondimensional average velocity to deviate from logarithmic distribution of nondimensional average velocity in the boundary layer

and also made the wake become narrower and shorter

and the detachment point move backward.When the Reynolds's number reached up to 11650

the influence of magnetic field was weaken under same strength of external magnetic field.Consequently

the departure degree between the nondimensional average velocity distribution and logarithmic distribution in the boundary layer was reduced.

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Related Institution

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