Measurements of Transport Properties and Their Problems.

概要

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In response to the earnest requirement in both science and industrial technology, several new devices for measurements of thermophysical properties have been developed. This article reviews briefly the experimental techniques for measurement of the viscosity and the thermal conductivity of fluids. A special topic focused on is the applicability of the transient hot-wire method to the measurement in dilute gas region. Some technical problems are discussed refering to the authors' experimental data as well as the recent theoretical discussions in the literature.