Application of finite element method to the dual-phase lagging heat conduction model

Fei-Fei Wang, Bao-Lin Wang, Xiao-Dong Shan, Fang Qian

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    Dual-phase lagging model is the important supplementary theory for heat conduction knowledge system, which lies in the introduction of heat flux relaxation time and temperature relaxation time. This article aiming at getting the numerical solution of DPL equation, adopts the central difference method to discretize the 1-D space coordinate and applies the finite element method to transform the difference equation into matrix form. Then the numerical results are derived through multiple iterations by Matlab. The resulting simulation indicates that the value of heat flux relaxation time decides the difference between single-phase lagging model and temperature relaxation time influence the heat propagation velocity to some extent.
    Original languageEnglish
    Title of host publicationProceedings of the 2015 International Conference on Mechanics and Mechatronics (ICMM2015): Changsha, Hunan, China, 13-15 March, 2015
    PublisherWorld Scientific Press
    Pages760-766
    Number of pages7
    ISBN (Print)9789814699136
    DOIs
    Publication statusPublished - 2015
    EventInternational Conference on Mechanics and Mechatronics -
    Duration: 13 Mar 2015 → …

    Conference

    ConferenceInternational Conference on Mechanics and Mechatronics
    Period13/03/15 → …

    Keywords

    • finite element method
    • mechanics
    • heat
    • conduction

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