Calculation of self-diffusion coefficients in liquid metals based on hard sphere diameters estimated from viscosity data

2001 ◽  
Vol 341 (1-2) ◽  
pp. 179-184 ◽  
Author(s):  
C. Jayaram ◽  
R. Ravi ◽  
R.P. Chhabra
Keyword(s):  
Diffusion Coefficients ◽  
Hard Sphere ◽  
Liquid Metals ◽  
Viscosity Data ◽  
Self Diffusion ◽  
Hard Sphere Diameters

scholarly journals Modelling the Diffusion Coefficients of Dilute Gaseous Solutes in Hydrocarbon Liquids

2021 ◽  
Vol 42 (10) ◽  
Author(s):  
Yasser A. Aljeshi ◽  
Malyanah Binti Mohd Taib ◽  
J. P. Martin Trusler
Keyword(s):  
Carbon Dioxide ◽  
Diffusion Coefficients ◽  
Hard Sphere ◽  
Tracer Diffusion ◽  
Pure Component ◽  
Viscosity Data ◽  
Polar Liquids ◽  
Self Diffusion ◽  
Coefficient Measurement ◽  
Tracer Diffusion Coefficients

AbstractIn this work, we present a model, based on rough hard-sphere theory, for the tracer diffusion coefficients of gaseous solutes in non-polar liquids. This work extends an earlier model developed specifically for carbon dioxide in hydrocarbon liquids and establishes a general correlation for gaseous solutes in non-polar liquids. The solutes considered were light hydrocarbons, carbon dioxide, nitrogen and argon, while the solvents were all hydrocarbon liquids. Application of the model requires knowledge of the temperature-dependent molar core volumes of the solute and solvent, which can be determined from pure-component viscosity data, and a temperature-independent roughness factor which can be determined from a single diffusion coefficient measurement in the system of interest. The new model was found to correlate the experimental data with an average absolute relative deviation of 2.7 %. The model also successfully represents computer-simulation data for tracer diffusion coefficients of hard-sphere mixtures and reduces to the expected form for self-diffusion when the solute and solvent become identical.

Theory of transport in liquid metals. I. Calculation of self‐diffusion coefficients

1973 ◽  
Vol 59 (1) ◽  
pp. 15-25 ◽  
Author(s):  
P. Protopapas ◽  
Hans C. Andersen ◽  
N. A. D. Parlee
Keyword(s):  
Diffusion Coefficients ◽  
Liquid Metals ◽  
Self Diffusion

Hard-Sphere Model for Self-Diffusion in Liquid Metals

1970 ◽  
Vol 1 (12) ◽  
pp. 4850-4851 ◽  
Author(s):  
Charles J. Vadovic ◽  
C. Phillip Colver
Keyword(s):  
Hard Sphere ◽  
Liquid Metals ◽  
Hard Sphere Model ◽  
Sphere Model ◽  
Self Diffusion

Molecular dynamics simulation of self-diffusion coefficients for liquid metals

2013 ◽  
Vol 22 (8) ◽  
pp. 083101 ◽  
Author(s):  
Yuan-Yuan Ju ◽  
Qing-Ming Zhang ◽  
Zi-Zheng Gong ◽  
Guang-Fu Ji
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Diffusion Coefficients ◽  
Liquid Metals ◽  
Dynamics Simulation ◽  
Self Diffusion

p, T Dependence of the Self Diffusion Coefficients and Densities in Liquid Silicone Oils

1996 ◽  
Vol 51 (3) ◽  
pp. 192-196 ◽  
Author(s):  
A. Thern ◽  
H.-D. Lüdemann
Keyword(s):  
Diffusion Coefficients ◽  
Hard Sphere ◽  
The Self ◽  
Hard Sphere Model ◽  
Tait Equation ◽  
Sphere Model ◽  
Rouse Model ◽  
Self Diffusion ◽  
Silicone Oils ◽  
Liquid Silicone

Abstract Self diffusion coefficients and densities from a series of commercial silicones have been studied in the temperature range between 290 and 410 K at pressures up to 200 MPa. The densities are fitted to a modified Tait equation. The self diffusion coefficients are discussed in terms of the rough hard sphere model and tested against the Rouse-model.

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