边壁剪切流若干特性研究

doi:10.3969/j.issn.1674-0696.2009.06.28

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (6): 1083-1087.DOI: 10.3969/j.issn.1674-0696.2009.06.28

边壁剪切流若干特性研究

刘兆存¹,范玮佳²

1.重庆交通大学西南水运工程科学研究所,重庆400016;2.重庆交通大学河海学院,重庆400074

收稿日期:2009-06-17 修回日期:2009-08-31 出版日期:2009-12-15 发布日期:2015-04-15
作者简介:刘兆存(1968—),男,河南南阳人,博士后,从事湍流研究。E-mail:Liuzc@yahoo.com.cn。
基金资助:
国际科技支撑计划专题资助项目( 2006BAB05B02); 重庆交通大学青年科技基金( XN( 2009) 04)

Some?Properties?of?Turbulent?Shear?Flow

LIU Zhao-cun¹, FAN Wei-jia²

?1.?Southwest?Research?Institute?of?Water?Transport?Engineering,?Chongqing?Jiaotong?University,?Chongqing?400016,?China?;??2.?School?of?River?＆?Ocean?Engineering,?Chongqing?Jiaotong?University,?Chongqing?400074,?China

Received:2009-06-17 Revised:2009-08-31 Online:2009-12-15 Published:2015-04-15

摘要/Abstract

摘要： 分析了壁面剪切流的流动特性及计算内部能量间的分配关系,研究了层流、湍流的流动特性和层流到湍流转捩的特点,讨论了剪切流的一般机理。指出能量传递和不同阶段的不同结构有关,能量耗散和扩散与共振和锁频密切相联系。研究表明,湍流从本质上看是一种局部现象并且具有对称破缺的特性。

关键词: 剪切湍流, 能量分配, 拟序结构, 湍流封闭性

Abstract: The?flowing?properties?of?wall?shear?flow?are?analyzed?and?the?distribution?relationship?of?internal?energy?is?calculated.?Furthermore,?the?dynamic?characteristics?of?laminar?and?turbulent?flow?as?well?as?the?transition?from?the?laminar?flow?to?turbulent?flow?are?studied.?On?the?basis?of?reviewing?and?commenting?the?related?literature?review,?the?general?mechanism?of?turbulent?shear?flow?is?probed.?The?result?shows?that?the?energy?transfer?has?relations?with?different?structures?at?different?flowing?stages,?and?the?dissipation?and?diffusion?of?energy?relate?closely?with?the?resonance?and?frequency-locking;the?turbu-?lence?is?a?partial?phenomenon?and?has?symmetric?breaking＇s?character?in?essence

Key words: shear flow , energy distribution , coherent structure , turbulent closure

中图分类号:

刘兆存,范玮佳. 边壁剪切流若干特性研究[J]. 重庆交通大学学报（自然科学版）, 2009, 28(6): 1083-1087.

LIU Zhao-cun, FAN Wei-jia. Some?Properties?of?Turbulent?Shear?Flow[J]. Journal of Chongqing Jiaotong University(Natural Science), 2009, 28(6): 1083-1087.

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边壁剪切流若干特性研究

Some?Properties?of?Turbulent?Shear?Flow

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