Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction

Liangzhe Zhang, Michael R. Tonks, Paul C. Millett, Yongfeng Zhang, Karthikeyan Chockalingam, Bulent Biner

    Research output: Contribution to journalArticlepeer-review

    43 Scopus citations

    Abstract

    Pore migration in a temperature gradient (Soret effect) is investigated by a phase-field model coupled with a heat transfer calculation. Pore migration is observed towards the high temperature domain with velocities that agree with analytical solution. Due to the low thermal conductivity of the pores, the temperature gradient across individual pores is increased, which in turn, accelerates the pore migration. In particular, for pores filled with xenon and helium, the pore velocities are increased by a factor of 2.2 and 2.1, respectively. A quantitative equation is then derived to predict the influence of the low thermal conductivity of pores.

    Original languageEnglish (US)
    Pages (from-to)161-165
    Number of pages5
    JournalComputational Materials Science
    Volume56
    DOIs
    StatePublished - Apr 2012

    All Science Journal Classification (ASJC) codes

    • General Computer Science
    • General Chemistry
    • General Materials Science
    • Mechanics of Materials
    • General Physics and Astronomy
    • Computational Mathematics

    Fingerprint

    Dive into the research topics of 'Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction'. Together they form a unique fingerprint.

    Cite this