Relationship between Viscous Flow and Diffusion

Nature ◽  
1962 ◽  
Vol 195 (4840) ◽  
pp. 482-483 ◽  
Author(s):  
F. A. L. DULLIEN
Keyword(s):  
Viscous Flow ◽  
And Diffusion

409 Sintering Mechanics of Ceramics: Tensor Virial Equation of Sintering by Viscous Flow and Diffusion

2013 ◽  
Vol 2013.21 (0) ◽  
pp. _409-1_-_409-3_
Author(s):  
Fumihiro WAKAI ◽  
Yutaka SHINODA ◽  
Takashi AKATSU ◽  
Kenneth Brakke
Keyword(s):  
Viscous Flow ◽  
Virial Equation ◽  
And Diffusion

Simultaneous Viscous Flow and Diffusion of Gases through Small Apertures

1971 ◽  
Vol 42 (11) ◽  
pp. 4183-4187 ◽  
Author(s):  
R. A. Pasternak ◽  
M. V. Christensen
Keyword(s):  
Viscous Flow ◽  
And Diffusion ◽  
Diffusion Of Gases

Viscous flow and diffusion of liquids in microporous glasses

1992 ◽  
Vol 46 (17) ◽  
pp. 10701-10705 ◽  
Author(s):  
M. Y. Lin ◽  
B. Abeles ◽  
J. S. Huang ◽  
H. E. Stasiewski ◽  
Q. Zhang
Keyword(s):  
Viscous Flow ◽  
And Diffusion

Dynamic analysis of viscous flow and diffusion in porous solids

AIChE Journal ◽  
1989 ◽  
Vol 35 (8) ◽  
pp. 1370-1375 ◽  
Author(s):  
Gülşen Do??u ◽  
Ahmet Pekediz ◽  
Timur Do??u
Keyword(s):  
Dynamic Analysis ◽  
Viscous Flow ◽  
Porous Solids ◽  
And Diffusion

Permeability in Relation to Viscosity and Structure of Rubber

1942 ◽  
Vol 15 (3) ◽  
pp. 537-544 ◽  
Author(s):  
Richard M. Barrer
Keyword(s):  
Viscous Flow ◽  
Thermal Energy ◽  
Diffusion Constant ◽  
The Self ◽  
Self Diffusion ◽  
Functional Relations ◽  
Diffusion Media ◽  
Entropy Of Activation ◽  
Arrhenius Energy ◽  
And Diffusion

Abstract Some properties of flow of solutes in and through rubbers are outlined. These properties indicate that, due to fluctuations of thermal energy, activated zones exist in certain polymers, of which viscous flow and diffusion are a consequence. A simple statistics of activated zones has been given, and from it equations are obtained for ΣN, D, Ds, and η, denoting respectively the total number of activated zones in rubber, the diffusion constant of simple solutes in the polymer, the self-diffusion constant of rubber, and its viscosity. Functional relations are predicted between log Do, log ηo, or ΔS* (the entropy of activation) and the Arrhenius energy of activation for diffusion or viscous flow. The available data clearly demonstrate this relationship. They also indicate no discontinuity between rubbers and liquids as diffusion media.

Activation parameters for transport and thermal expansion

1981 ◽  
Vol 59 (14) ◽  
pp. 2170-2172 ◽  
Author(s):  
Robert A. Stairs
Keyword(s):  
Activation Energy ◽  
Thermal Expansion ◽  
Internal Pressure ◽  
Viscous Flow ◽  
Diffusion Coefficients ◽  
High Pressures ◽  
Constant Pressure ◽  
Activation Parameters ◽  
Pressure Measurements ◽  
And Diffusion

A correlation is proposed between the ratios: Y = πΔV≠/E(p)≠ (where π is the internal pressure of a liquid, ΔV≠ the volume of activation RT(∂ ln η/∂p)T, and E(p)≠ the activation energy at constant pressure for viscous flow, or the corresponding quantities for diffusion) and X = E(ρ)≠/E(p) (where E(ρ) is the "energy of thermal expansion", defined by: −R[∂ ln (ρ−1 − ρ0−1)/∂T−1]p). The first, Y, involves quantities measured at high pressures, while X requires only measurements at ordinary pressure. The correlation will permit estimation of viscosities and diffusion coefficients at high pressures from low-pressure measurements.

A Physico-Chemical Study of Concentrated Aqueous Solutions of Lithium Chloride

1991 ◽  
Vol 46 (1-2) ◽  
pp. 141-147 ◽  
Author(s):  
Kazuko Tanaka ◽  
Reita Tamamushi
Keyword(s):  
Aqueous Solutions ◽  
Viscous Flow ◽  
Electric Conductivity ◽  
Lithium Chloride ◽  
Diffusion Coefficients ◽  
Chemical Study ◽  
Thermal Expansivity ◽  
Physico Chemical ◽  
Experimental Values ◽  
And Diffusion

AbstractThe experimental values of density, viscosity, electric conductivity and diffusion coefficients of trace ions in aqueous solutions of lithium chloride in wide ranges of concentration and temperature are collected and discussed. The thermal expansivity and the activation energies of viscous flow, electric conductance and diffusion of trace ions show significant changes at a molality around 12 mol/kg, beyond which the hydration requirement is not satisfied

Visualizing Viscous Flow and Diffusion in the Circulatory System

2019 ◽  
Vol 57 (8) ◽  
pp. 529-532
Author(s):  
Benjamin Spitznagel ◽  
Justin Weigal ◽  
Juan Rodriguez
Keyword(s):  
Viscous Flow ◽  
Circulatory System ◽  
And Diffusion
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