Numerical analysis of convective instabilities in a transient short-hot-wire setup for measurement of liquid thermal conductivity

Roberto Rusconi; Wesley C. Williams; Jacopo Buongiorno; Roberto Piazza; Lin Wen Hu

doi:10.1007/s10765-007-0202-2

Numerical analysis of convective instabilities in a transient short-hot-wire setup for measurement of liquid thermal conductivity

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

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1131-1146
Number of pages	16
Journal	International Journal of Thermophysics
Volume	28
Issue number	4
DOIs	https://doi.org/10.1007/s10765-007-0202-2
State	Published - Aug 2007
Externally published	Yes

Funding

This work was made possible by the generous support of the joint MIT/Politecnico “Progetto Rocca” Program, the Idaho National Laboratory, and the U.S. Department of Energy Innovations in Nuclear Infrastructure and Education grant.

Funders	Funder number
U.S. Department of Energy Innovations in Nuclear Infrastructure and Education
Idaho National Laboratory

Keywords

Convection
Liquids
Numerical simulations
Thermal conductivity
Transient hot-wire technique

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10.1007/s10765-007-0202-2

Cite this

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abstract = "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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AU - Buongiorno, Jacopo

AU - Piazza, Roberto

AU - Hu, Lin Wen

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KW - Numerical simulations

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KW - Transient hot-wire technique

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Numerical analysis of convective instabilities in a transient short-hot-wire setup for measurement of liquid thermal conductivity

Abstract

Funding

Keywords

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