Bulk viscosity universality and scaling function near the binary liquid consolute point

2009 | journal article. A publication of Göttingen

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​Bulk viscosity universality and scaling function near the binary liquid consolute point​
Bhattacharjee, J. K.; Iwanowski, I. & Kaatze, U.​ (2009) 
The Journal of Chemical Physics131(17) art. 174502​.​ DOI: https://doi.org/10.1063/1.3258279 

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Authors
Bhattacharjee, Jayanta K.; Iwanowski, Ireneusz; Kaatze, Udo
Abstract
The hydrodynamical equations and the notion of a frequency dependent complex specific heat near the critical point of binary liquids are used to obtain an expression for the low-frequency bulk viscosity. In this way the interrelations between different theoretical models, treating the critical sound attenuation from either a specific heat or a bulk viscosity approach, are made evident. The general structure of the bulk viscosity relation agrees with that of Onuki [Phys. Rev. E 55, 403 (1997)] but a universal number emerges only if a normalization to the critical point value is done.
Issue Date
2009
Status
published
Publisher
Amer Inst Physics
Journal
The Journal of Chemical Physics 
ISSN
1089-7690; 0021-9606

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