scholarly journals Dynamic Viscosity of Binary Fluid Mixtures: A Review Focusing on Asymmetric Mixtures

2021 ◽  
Vol 42 (11) ◽  
Author(s):  
Monika Thol ◽  
Markus Richter
Keyword(s):  
Experimental Data ◽  
Carbon Dioxide ◽  
Equation Of State ◽  
Literature Review ◽  
Binary Mixture ◽  
Binary Fluid ◽  
Fluid Mixtures ◽  
Friction Theory ◽  
Extended Corresponding States ◽  
Binary Fluid Mixtures

AbstractA literature review on experimental data for binary mixtures of methane and carbon dioxide with hydrocarbons up to n-hexadecane is presented. Based on these data, the extended corresponding states method, two entropy scaling approaches, and the friction theory are analyzed with respect to their capability of calculating viscosity values with increasing asymmetry of the binary mixture. It is shown that not only the viscosity model but also the underlying thermodynamic equation of state has a significant influence on the result of such calculations. Shortcomings are identified both in the experimental data and in the modeling approaches.

scholarly journals Thermodynamic Curvature of the Binary van der Waals Fluid

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1208
Author(s):  
George Ruppeiner ◽  
Alex Seftas
Keyword(s):  
Binary Mixture ◽  
Ricci Curvature ◽  
Van Der Waals ◽  
Curvature Scalar ◽  
Fluid Regime ◽  
Binary Fluid ◽  
Fluid Mixtures ◽  
Van Der Waals Fluid ◽  
Binary Fluid Mixtures ◽  
Thermodynamic Curvature

The thermodynamic Ricci curvature scalar R has been applied in a number of contexts, mostly for systems characterized by 2D thermodynamic geometries. Calculations of R in thermodynamic geometries of dimension three or greater have been very few, especially in the fluid regime. In this paper, we calculate R for two examples involving binary fluid mixtures: a binary mixture of a van der Waals (vdW) fluid with only repulsive interactions, and a binary vdW mixture with attractive interactions added. In both of these examples, we evaluate R for full 3D thermodynamic geometries. Our finding is that basic physical patterns found for R in the pure fluid are reproduced to a large extent for the binary fluid.

T, p Dependence of intradiffusion in binary fluid mixtures with carbon dioxide as one component

2001 ◽  
Vol 3 (14) ◽  
pp. 2845-2851 ◽  
Author(s):  
Thomas Groß ◽  
Liuping Chen ◽  
Johannes Buchhauser ◽  
Hans-Dietrich Lüdemann
Keyword(s):  
Carbon Dioxide ◽  
Binary Fluid ◽  
Fluid Mixtures ◽  
Binary Fluid Mixtures

XX.—On the Theory of Binary Fluid Mixtures

1957 ◽  
Vol 64 (3) ◽  
pp. 305-317 ◽  
Author(s):  
F. J. Pearson ◽  
G. S. Rushbrooke
Keyword(s):  
Correlation Function ◽  
Binary Mixture ◽  
Distribution Functions ◽  
Optical Scattering ◽  
Radial Distribution Functions ◽  
Binary Fluid ◽  
X Ray ◽  
Fluid Mixtures ◽  
Critical Opalescence ◽  
Binary Fluid Mixtures

A number of analogues to the simple fluid compressibility equation are deduced by considering fluctuations in a binary mixture; and their simplest expressions are found to be in terms of the binary mixture direct correlation functions. The accuracy of these results is tested with the aid of the appropriate extension of the approximate Born-Green theory, which facilitates the demonstration of consistency with the first three terms of the virial expansion. The problem of the evaluation of the corresponding radial distribution functions by means of X-ray or optical scattering is taken as far as the determination, in principle, of a concentration correlation function from observations of critical opalescence.

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