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Critical thermal-conductivity enhancement in molecular fluids



Richard A. Perkins, Jan V. Sengers, Ilmutdin M. Abdulagatov, Marcia L. Huber


The available information for the thermal-conductivity enhancement is reviewed. We show that it can be represented by a simplified solution of the mode-coupling theory of critical dynamics with two critical amplitudes and one cutoff wave number as fluid-specific parameters. Using corresponding states we correlate these fluid specific parameters in terms of their dependence on the acentric factor. We are thus able to present a universal representation of the critical enhancement of the thermal conductivity for a large number of molecular fluids.
International Journal of Thermophysics


Acentric factor, Correlation length, Corresponding states, Critical amplitudes, Critical dynamics, Mode-coupling theory, Thermal conductivity, Thermal diffusivity


Perkins, R. , Sengers, J. , Abdulagatov, I. and Huber, M. (2013), Critical thermal-conductivity enhancement in molecular fluids, International Journal of Thermophysics, [online], (Accessed July 13, 2024)


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Created March 2, 2013, Updated November 10, 2018