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完全发展的非对称槽道湍流的标度指数研究

蒋剑波 邱翔 卢志明 刘宇陆

蒋剑波, 邱翔, 卢志明, 刘宇陆. 完全发展的非对称槽道湍流的标度指数研究[J]. 应用数学和力学, 2005, 26(3): 267-273.
引用本文: 蒋剑波, 邱翔, 卢志明, 刘宇陆. 完全发展的非对称槽道湍流的标度指数研究[J]. 应用数学和力学, 2005, 26(3): 267-273.
JIANG Jian-bo, QIU Xiang, LU Zhi-ming, LIU Yu-lu. Scaling Exponents in Fully Developed Asymmetric Channel Flow[J]. Applied Mathematics and Mechanics, 2005, 26(3): 267-273.
Citation: JIANG Jian-bo, QIU Xiang, LU Zhi-ming, LIU Yu-lu. Scaling Exponents in Fully Developed Asymmetric Channel Flow[J]. Applied Mathematics and Mechanics, 2005, 26(3): 267-273.

完全发展的非对称槽道湍流的标度指数研究

基金项目: 国家自然科学基金资助项目(10272071;10472063)
详细信息
    作者简介:

    蒋剑波(1974- ),男,河北保定人,博士;刘宇陆(联系人.Tel/Fax:+86-21-56332507;E-mail:ylliu@yc.shu.edu.cn).

  • 中图分类号: O357.5

Scaling Exponents in Fully Developed Asymmetric Channel Flow

  • 摘要: 以子波变换为分析工具,研究了完全发展的非对称槽道湍流的局部标度指数和整体标度指数.其中整体标度指数通过正交子波和广义自相似定律得到,其结果表明非对称槽道流动呈现出与对称槽道流极为不同的间歇性,随着壁面距离的增大,横向脉动速度与流向脉动速度呈现出不同的间歇性,而且间歇性并非一直减弱.另外,比较分析了几种不同方法得到的局部标度指数,发现连续子波方法计算局部标度指数并不可靠,对于湍流研究中出现的负局部标度指数的情况需要慎重考虑.
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出版历程
  • 收稿日期:  2003-09-02
  • 修回日期:  2004-12-03
  • 刊出日期:  2005-03-15

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