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›› 2015, Vol. 37 ›› Issue (2): 218-222,231.doi: 10.6052/1000-0879-14-146

• 应用研究 • 上一篇    下一篇

渐缩平板间的缓变流

黄树新   

  1. 上海交通大学工程力学系, 水动力学教育部重点实验室, 上海 200240
  • 收稿日期:2014-04-24 修回日期:2014-06-18 出版日期:2015-04-15 发布日期:2015-04-13
  • 通讯作者: 黄树新,博士, 副教授,主要研究方向为流变学和流体力学. E-mail:huangshuxin@sjtu.edu.cn E-mail:huangshuxin@sjtu.edu.cn

GRADUALLY VARYING FLOW BETWEEN GRADUALLY CONTRACTION PLATES

HUANG Shuxin   

  1. Department of Engineering Mechanics, MOE Key Laboratory of Hydrodynamics, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2014-04-24 Revised:2014-06-18 Online:2015-04-15 Published:2015-04-13

摘要: 通过数值模拟方法探讨了渐缩平板间的不平行流动和缓变流的关系.分析了倾斜板的倾角对流动的影响.对采用EXP(CES)方式得到的数据,在板倾角为5.455°时不平行流动相对平行流动的偏差达1%,在13.26°时偏差达10%.这里取1%的偏差所对应的5.455°作为本文探讨的缓变流的临界角.最后讨论了数值模拟结果的合理性和可靠性.

关键词: 缓变流|渐缩平板|数值模拟|临界角

Abstract: This paper studies the relation between the non-parallel flow and the gradually varying flow in gradually contraction plates by numerical simulations. The influence of the incline angle of the plates on the flow is analyzed. According to the data obtained by means of the EXP(CES) mode, a one per cent relative deviation is seen between the non-parallel flow at the incline angle of 5.455° and the parallel flow, while one sees a ten per cent deviation at 13.26°. The angle of 5.455° corresponding to a one per cent deviation is regarded as the critical value of the gradually varying flow. The reasonability and reliability of the numerical simulation of the flow between gradually contraction plates are discussed at the end of the paper.

Key words: gradually varying flow|gradually contraction plates|numerical method|critical angle

中图分类号: 

  • O351