Correlation for the Viscosity of Hydrogen obtained from Symbolic Regression
Chris D. Muzny, Marcia L. Huber, Andrei F. Kazakov
We report the results of a symbolic regression methodology to obtain both the functional form and the coefficients for a wide-ranging correlation for the viscosity of normal hydrogen. The correlation covers the temperature range from the triple point temperature to 1000 K and pressures up to 200 MPa and extrapolates in a physically reasonable manner to 2000 K. The estimated uncertainty is 4 % for the saturated liquid from the triple point to 31 K, with larger deviations as the critical region is approached. The estimated uncertainty is 4 % for the supercritical fluid phase at pressures to 200 MPa. For the limited range of 200 K to 400 K at pressures up to 0.1 MPa, the uncertainty is 0.1 %.
, Huber, M.
and Kazakov, A.
Correlation for the Viscosity of Hydrogen obtained from Symbolic Regression, Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/je301273j |
(Accessed June 3, 2023)