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Numerical Analysis of Convective Instabilities in a Transient Short-Hot-Wire Setup for Measurement of Liquid Thermal Conductivity

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Numerical simulation has been used to investigate the effects of natural convection on measurements of the thermal conductivity of fluids by transient hot-wire methods. Comparison of the numerical data with the experimental results obtained with a custom-built setup exploiting a short-wire geometry allows fixing an operationally useful time scale, where convective effects can be safely neglected.

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Authors and Affiliations

  1. Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts, 02139, U.S.A

    Roberto Rusconi, Wesley C. Williams, Jacopo Buongiorno & Lin-Wen Hu

  2. Dipartimento di Ingegneria Nucleare, Politecnico di Milano, via Ponzio 34/3, Milano, 20133, Italy

    Roberto Rusconi & Roberto Piazza

Authors
  1. Roberto Rusconi
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  2. Wesley C. Williams
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  3. Jacopo Buongiorno
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  4. Roberto Piazza
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  5. Lin-Wen Hu
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Correspondence to Lin-Wen Hu.

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Rusconi, R., Williams, W.C., Buongiorno, J. et al. Numerical Analysis of Convective Instabilities in a Transient Short-Hot-Wire Setup for Measurement of Liquid Thermal Conductivity. Int J Thermophys 28, 1131–1146 (2007). https://doi.org/10.1007/s10765-007-0202-2

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  • DOI: https://doi.org/10.1007/s10765-007-0202-2

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