计算物理 ›› 2018, Vol. 35 ›› Issue (6): 685-692.DOI: 10.19596/j.cnki.1001-246x.7772

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基于拓展分离变量法的非傅里叶传热研究

李细霞, 王丽, 戴海燕, 李长玉   

  1. 华南理工大学广州学院汽车与交通工程学院, 广州 510800
  • 收稿日期:2017-09-25 修回日期:2017-11-16 出版日期:2018-11-25 发布日期:2018-11-25
  • 通讯作者: 李长玉(1981-),男,汉族,湖北老河口人,工学博士,副教授,E-mail:licy@gcu.edu.cn
  • 作者简介:李细霞(1982-),女,汉族,湖北黄冈人,工学硕士,讲师,E-mail:lixx@gcu.edu.cn
  • 基金资助:
    广东省青年创新类人才项目基金(2016KQNCX226)资助

Non-Fourier Heat Transfer Based on Extended Separation Variable Method

LI Xixia, WANG Li, DAI Haiyan, LI Changyu   

  1. School of Automotive and Traffic Engineering, Guangzhou College of SCUT, Guangzhou 510800, China
  • Received:2017-09-25 Revised:2017-11-16 Online:2018-11-25 Published:2018-11-25

摘要: 常规的分离变量方法不能求解非傅里叶传热模型问题,本文对常规分离变量法进行拓展,利用拓展后的方法求解热传导的傅里叶模型,单相位滞后(C-V)模型和双相位滞后(DPL)模型,比较利用三种模型计算温度场的差别.研究C-V模型和DPL模型中温度波动的规律,得到温度波动速度和热流量时间滞后值的关系.

关键词: 分离变量法, 非傅里叶模型, 温度场, 双相位滞后

Abstract: Non-Fourier heat transfer model cannot be solved by conventional method of separating of variables. A conventional method of separating variables is developed. Fourier model, Cattaneo-Vernotte (C-V) model and dual phase lag (DPL) model are solved by the method. Differences of temperature fields calculated with three models are compared. Temperature fluctuation in C-V model and DPL model is studied. And relation between temperature fluctuation velocity and time lag of heat flux is studied.

Key words: separation of variables method, non-Fourier model, temperature field, dual-phase-lag models

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