In this study, the effects of natural convection and temperature data range selection on the thermal conductivity measurement using transient hot-wire method are analyzed by both experimentally and computationally. The natural convection flow field is...
In this study, the effects of natural convection and temperature data range selection on the thermal conductivity measurement using transient hot-wire method are analyzed by both experimentally and computationally. The natural convection flow field is a function of the fluid properties such as dynamic viscosity and thermal expansion coefficient which varies with fluid temperature. It is found that there is the best temperature data range to use to measure the fluid thermal conductivity and it varies with the impact of natural convection.