Experimental simulation of magnetohydrodynamic effect  instabilities caused by cracks

XU Zengyu  PAN Chuanjie  WEI Wenhao  CHEN Xiaoqiong  ZHANG Yanxu

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Experimental simulation of magnetohydrodynamic effect instabilities caused by cracks

更新时间：2021-03-12

- Experimental simulation of magnetohydrodynamic effect instabilities caused by cracks
- NUCLEAR TECHNIQUES Issue 2, (2002)
- 作者机构：
  
  1. 核工业西南物理研究院
  2. 核工业西南物理研究院,成都,610041
- 作者简介：
- 基金信息：
  
  国家“8 6 3”计划 (86 3- 6 14 - 0 30 3)资助
- DOI：
  CLC： TL62
- Published：01 February 2002
- 稿件说明：
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[1]许增裕,潘传杰,魏文浩,陈晓琼,张延续.涂层裂纹引起的MHD效应不稳定性实验模拟[J].核技术,2002(02):81-85.

XU Zengyu PAN Chuanjie WEI Wenhao CHEN Xiaoqiong ZHANG Yanxu. Experimental simulation of magnetohydrodynamic effect instabilities caused by cracks[J]. Nuclear techniques, 2002, (2): 81-85.
[1]许增裕,潘传杰,魏文浩,陈晓琼,张延续.涂层裂纹引起的MHD效应不稳定性实验模拟[J].核技术,2002(02):81-85. DOI：

XU Zengyu PAN Chuanjie WEI Wenhao CHEN Xiaoqiong ZHANG Yanxu. Experimental simulation of magnetohydrodynamic effect instabilities caused by cracks[J]. Nuclear techniques, 2002, (2): 81-85. DOI：

摘要

介绍了用铜电极和铜导线模拟管道内电绝缘涂层裂纹

引起磁流体动力学（MHD）效应的最新实验结果。结果表明 :绝缘涂层的裂纹不仅使MHD压降大大提高

而且产生MHD效应的不稳定性。边界电位差U和MHD压降ΔP产生跃变

偏离了经典规律

跃变的幅度达 10 0 % ;且在实验参数不变的情况下

边界电位差U和MHD压降ΔP随时间在振荡。

Abstract

Experimental simulation results of magnetohydrodynamic (MHD) effect instabilities caused by coating cracks on insulating layer in pipes are presented. The results showed that the cracks induced not only a great increase of MHD pressure drop

but also unsteadiness of MHD effect. Deviated from the classical laws

both the boundary potential difference U and MHD pressure drop Δ P jumped to an extent over 100%. Moreover

under the same experimental parameters

U vibrated with time and Δ P vibrated with velocity V 0.

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Related Author

Jianbin PAN

Guozhen WANG

Fuzhen XUAN

Shandong TU

Related Institution

Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and Technology

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