期刊文献+

Experimental investigation on flow characteristics in circular tube inserted with rotor-assembled strand using PIV 被引量:4

Experimental investigation on flow characteristics in circular tube inserted with rotor-assembled strand using PIV
下载PDF
导出
摘要 Rotor-assembled strand works as a typical tube insert to achieve heat transfer augmentation and scale inhibition in a heat exchanger.In this work, the PIV experiment regarding the flow fields in a circular tube inserted with rotor-assembled strand was conducted and the flow characteristics on transverse section and longitudinal section were analyzed.The results showed that swirling flow was produced in the tube inserted with rotors and it was particularly strong within the swing diameter of the rotor on the section that contains the rotor;the average turbulence intensity and the radial velocity were improved notably; the velocity vectors on the longitudinal section remained along the direction of a straight line; both the swirling flow and average turbulence intensity were higher for the rotor with three blades than for the rotor with two blades except that the radial velocity was approximate, but they were all reduced by enlarging the lead of the rotor.Characterization of the flow patterns in a circular tube contributes to understanding the heat transfer efficiency and scale inhibition performance of the rotor-assembled strand and provides guidance for its application. Rotor-assembled strand works as a typical tube insert to achieve heat transfer augmentation and scale inhibition in a heat exchanger.In this work, the PIV experiment regarding the flow fields in a circular tube inserted with rotor-assembled strand was conducted and the flow characteristics on transverse section and longitudinal section were analyzed.The results showed that swirling flow was produced in the tube inserted with rotors and it was particularly strong within the swing diameter of the rotor on the section that contains the rotor;the average turbulence intensity and the radial velocity were improved notably; the velocity vectors on the longitudinal section remained along the direction of a straight line; both the swirling flow and average turbulence intensity were higher for the rotor with three blades than for the rotor with two blades except that the radial velocity was approximate, but they were all reduced by enlarging the lead of the rotor.Characterization of the flow patterns in a circular tube contributes to understanding the heat transfer efficiency and scale inhibition performance of the rotor-assembled strand and provides guidance for its application.
出处 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2019年第1期1-9,共9页 中国化学工程学报(英文版)
基金 Supported by the National Natural Science Foundation of China(51576012)
关键词 Particle image VELOCIMETRY (PIV) Swirling flow Rotor-assembled STRAND CIRCULAR tube Particle image velocimetry(PIV) Swirling flow Rotor-assembled strand Circular tube
  • 相关文献

参考文献3

二级参考文献17

  • 1杨卫民,耿立波,阎华,黄伟,丁玉梅,谢鹏程,赖士兴.洁能芯节能原理及应用[J].化工进展,2006,25(z1):198-200. 被引量:6
  • 2杨小林,严敬.PIV测速原理与应用[J].西华大学学报(自然科学版),2005,24(1):19-20. 被引量:41
  • 3Zhengliang Liu Jinyu Jiao Ying Zheng.STUDY OF AXIAL VELOCITY IN GAS CYCLONES BY 2D-PIV,3D-PIV,AND SIMULATION[J].China Particuology,2006,4(3):204-210. 被引量:2
  • 4吴莹,闵健,李志鹏,高正明.搅拌槽内流动结构的粒子图像测速技术研究[J].北京化工大学学报(自然科学版),2007,34(6):561-565. 被引量:7
  • 5Li Fengxiang (李锋祥).Investigation of heat transfer enhancement and structure modification of tube side assembled rotors for heat exchangers [D]. Beijing: Beijing University of Chemical Technology, 2009.
  • 6Adrian R J. Twenty years of particle image velocimetry [J]. Experiments in Fluids, 2005, 39:159-169.
  • 7Sozzi D A, Taghipour F. Experimental investigation of flow field in annular ultraviolet reactors using particle image velocimetry [J]. Ind. Eng. Chem. Res., 2005,44(26):9979-9988.
  • 8Hassan Y A, Dominguez-Ontiveros E E. Flow visualization in a pebble bed reactor experiment using PIV and refractive index matching techniques [J]. Nuclear Engineering and Design, 2008, 238:3080-3085.
  • 9Li Z P, Bao Y Y, Gao Z M. PIV experiments and large eddy simulations of single-loop flow fields in Rushton turbine stirred tanks [J]. Chemical Engineering Science, 2011, 66:1219-1231.
  • 10Ge Hai-wen, Norconk M, Lee Seong-Young, Naber J, Wooldridge S. PIV measurement and numerical simulation of fan-driven flow in a constMit volume combustion vessel [J]. Applied Thermal Engineering, 2014,64:19-31.

共引文献11

同被引文献32

引证文献4

二级引证文献8

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部