An accelerated two-dimensional unsteady heat conduction calculation procedure for thermal-conductivity measurement by the transient short-hot-wire method

P. L. Woodfield, J. Fukai, M. Fujii, Y. Takata

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

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A fast and accurate procedure is proposed for solution of the two-dimensional unsteady heat conduction equation used in the transient short-hot-wire method for measuring thermal conductivity. Finite Fourier transforms are applied analytically in the wire-axis direction to produce a set of one-dimensional ordinary differential equations. After discretization by the finite-volume method in the radial direction, each one-dimensional algebraic equation is solved directly using the tri-diagonal matrix algorithm prior to application of the inverse Fourier transform. The numerical procedure is shown to be very accurate through comparison with an analytical solution, and it is found to be an order of magnitude faster than the usual numerical solution.

元の言語英語
ページ(範囲)796-809
ページ数14
ジャーナルInternational Journal of Thermophysics
30
発行部数3
DOI
出版物ステータス出版済み - 6 1 2009

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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