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

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

Research output: Contribution to journal › Article

19 Citations (Scopus)

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 1 2012

Fingerprint

Phase Field
Conduction
Thermal gradients
Migration
Thermal conductivity
temperature gradients
Gradient
Thermal Conductivity
porosity
conduction
Helium
Xenon
Modeling
Phase Field Model
Heat transfer
Accelerate
Heat Transfer
Analytical Solution
Predict
thermal conductivity

All Science Journal Classification (ASJC) codes

  • Computer Science(all)
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Computational Mathematics

Cite this

Zhang, Liangzhe ; Tonks, Michael ; Millett, Paul C. ; Zhang, Yongfeng ; Chockalingam, Karthikeyan ; Biner, Bulent. / Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction. In: Computational Materials Science. 2012 ; Vol. 56. pp. 161-165.
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Zhang, L, Tonks, M, Millett, PC, Zhang, Y, Chockalingam, K & Biner, B 2012, 'Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction', Computational Materials Science, vol. 56, pp. 161-165. https://doi.org/10.1016/j.commatsci.2012.01.002

Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction. / Zhang, Liangzhe; Tonks, Michael; Millett, Paul C.; Zhang, Yongfeng; Chockalingam, Karthikeyan; Biner, Bulent.

In: Computational Materials Science, Vol. 56, 01.04.2012, p. 161-165.

Research output: Contribution to journal › Article

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T1 - Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction

AU - Zhang, Liangzhe

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AU - Millett, Paul C.

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AU - Chockalingam, Karthikeyan

AU - Biner, Bulent

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AB - 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.

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Zhang L, Tonks M, Millett PC, Zhang Y, Chockalingam K, Biner B. Phase-field modeling of temperature gradient driven pore migration coupling with thermal conduction. Computational Materials Science. 2012 Apr 1;56:161-165. https://doi.org/10.1016/j.commatsci.2012.01.002

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