This paper presents new wide-ranging correlations for the viscosity and thermal conductivity of n-undecane based on critically evaluated experimental data. The correlations are designed to be used with a recently published equation of state that is valid from the triple point to 700 K, at pressures up to 500 MPa, with densities below 776.86 kg m-3. The estimated uncertainty for the dilute-gas viscosity is 2.4%, and the estimated uncertainty for viscosity in the liquid phase for pressures up to 60 MPa over the temperature range 260 K to 520 K is 5%. The estimated uncertainty is 3% for the thermal conductivity of the low-density gas, and 3% for the liquid over the temperature range from 284 K to 677 K at pressures up to 400 MPa. Both correlations behave in a physically reasonable manner when extrapolated to the full range of the equation of state, however care should be taken when using the correlations outside of the validated range. The uncertainties will be larger outside of the validated range, and also in the critical region.

中文翻译：

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正十一烷粘度和热导率的参考相关性

本文基于严格评估的实验数据，提出了正十一烷的粘度和热导率的新的广泛相关性。这些相关性旨在与最近发布的状态方程一起使用，该状态方程从三相点到 700 K，压力高达 500 MPa，密度低于 776.86 kg m-3。稀释气体粘度的估计不确定度为 2.4%，在 260 K 至 520 K 的温度范围内压力高达 60 MPa 时，液相粘度的估计不确定度为 5%。在 284 K 至 677 K 的温度范围内，在高达 400 MPa 的压力下，低密度气体的热导率的估计不确定性为 3%，液体的估计不确定性为 3%。当外推到状态方程的整个范围时，两种相关性都以物理上合理的方式表现，但是，在验证范围之外使用相关性时应小心。在验证范围之外，以及在临界区域内，不确定性会更大。