Measurements of Fluid Transport Properties

Abstract

The accumulation of accurate experimental data on transport properties over wide temperature and pressure ranges is in critical demand in current chemical industrial fields. Various methods for the measurement of fluid thermal conductivity and viscosity are briefly reviewed in this article. Since the principle of measurement tends to be partially broken in dilute conditions, the measurements of these properties in the gas phase become more difficult. This article summarizes the special attention which should be paid in applying a transient hot-wire method and vibrating-wire method to gaseous thermal conductivity and viscosity measurements, respectively.