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基于分数阶Maxwell模型的振荡流传热特性分析

李明震 董金钟

李明震, 董金钟. 基于分数阶Maxwell模型的振荡流传热特性分析[J]. 北京航空航天大学学报, 2012, (11): 1562-1566.
引用本文: 李明震, 董金钟. 基于分数阶Maxwell模型的振荡流传热特性分析[J]. 北京航空航天大学学报, 2012, (11): 1562-1566.
Li Mingzhen, Dong Jinzhong. Theoretical analysis of heat transfer in oscillating flows with fractional Maxwell model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1562-1566. (in Chinese)
Citation: Li Mingzhen, Dong Jinzhong. Theoretical analysis of heat transfer in oscillating flows with fractional Maxwell model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1562-1566. (in Chinese)

基于分数阶Maxwell模型的振荡流传热特性分析

详细信息
  • 中图分类号: TK124

Theoretical analysis of heat transfer in oscillating flows with fractional Maxwell model

  • 摘要: 经求解基于分数阶Maxwell模型的粘弹性流体在周期性振荡压力梯度下,圆直管内的运动方程和能量方程,得到了振荡管流换热的速度分布、温度分布以及热扩散系数的解析解形式.通过对无量纲热扩散系数的分析可知,影响粘弹性流体管内振荡流轴向换热的无量纲参数有:Womersley数Wo、Deborah数De、无量纲振幅Δx/R和流体普朗特数Pr.分数阶Maxwell模型振荡流传热也存在粘弹性流体流动中存在的共振现象,且共振峰的数量随De数的减小而增加,发生共振的起始频率随De数的减小而降低.共振峰值出现的位置即频率值与Pr和无量纲振幅Δx/R无关.

     

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出版历程
  • 收稿日期:  2011-12-23
  • 刊出日期:  2012-11-30

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