ArticleInternational journal of thermophysics2026
Reference Correlation for the Viscosity of Helium.
Article in International journal of thermophysics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We present a new wide-ranging correlation for the viscosity of normal helium (He I) based on critically evaluated experimental data as well as high-accuracy ab initio calculations. The correlation is designed to be used with densities from a high-accuracy Helmholtz equation of state, covering temperatures from 2.1768 K to 1500 K and pressures up to 2000 MPa. The estimated uncertainty at the 95 % confidence level depends on temperature and pressure, spanning from 0.002 % in the dilute gas limit (298.15 K, 0 MPa) to 10 % for the liquid phase at pressures from saturation up to 8 MPa. Finally, we provide comprehensive comparisons with experimental data and Python code to facilitate easy implementation. Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s10765-026-03816-5.
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