Journal ArticleDOI
Nonlinear effects in the shear viscosity of fluids near the critical point
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In this paper, a microscopic theory for the nonlinear shear viscosity of fluids near the critical point is presented, and it is shown that dependence on shear gradients should be observable in capillary viscometer experiments.Abstract:
We present a microscopic theory for the nonlinear shear viscosity of fluids near the critical point, and find that dependence on shear gradients should be observable in capillary viscometer experiments. We suggest that the leveling off (cusplike behavior) of viscosities that has been observed experimentally may be a result of shear gradient effects. Further experiments to test our theory are suggested.read more
Citations
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Phase transitions of fluids in shear flow
TL;DR: In this article, the effects of shear in fluids undergoing phase transitions are reviewed, focusing on near-critical fluids and polymer solutions as representative examples, but also discuss related problems in polymer blends, gels, and surfactant systems.
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Nonequilibrium steady state of critical fluids under shear flow: A renormalization group approach
Akira Onuki,Kyozi Kawasaki +1 more
TL;DR: In this paper, the authors applied the Renormalization group method to a new situation, that is, to critical fluids in the presence of uniform shear flow, where distortion and suppression of long wavelength fluctuations (k k c ) by the flow become essential, and the following unexpected features are encountered in the steady state: (i) Order parameter fluctuations with k k c are highly anisotropic but are suppressed on the average below their equilibrium levels.
Journal ArticleDOI
Transport properties of fluids near critical points
TL;DR: In this article, the theoretical and experimental results for the asymptotic behavior of critical fluctuations in fluids and fluid mixtures near a critical point are reviewed and the implications for the development of accurate representative equations for the viscosity and thermal conductivity of gases in the critical region are discussed.
Journal ArticleDOI
Critical phenomena in microgravity: Past, present, and future
TL;DR: A review of the progress in using the low-gravity environment of space to explore critical phenomena and test modern theoretical predictions is provided in this paper, where a number of significant experiments have been performed in low-Earth orbit.
Journal ArticleDOI
Critical dynamics: a field-theoretical approach
Reinhard Folk,G. Moser +1 more
TL;DR: In this paper, a review of the progress made in dynamic bulk critical behavior in equilibrium in the last 25 years since the review of Halperin and Hohenberg is presented.
References
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Journal ArticleDOI
Ensemble Method in the Theory of Irreversibility
TL;DR: In this paper, a projection operator is used to separate an ensemble density into a relevant part, needed for the calculation of mean values of specified observables, and the remaining ''irrelevant'' part.
Journal ArticleDOI
Kinetic equations and time correlation functions of critical fluctuations.
Kyozi Kawasaki,Kyozi Kawasaki +1 more
TL;DR: In this paper, the Boltzmann equation of dilute gases was derived with the aid of a generalized Langevin equation due to Mori, which was then used to obtain selfconsistent closed equations to determine time correlation functions of critical fluctuations.
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Transport Coefficients near the Liquid-Gas Critical Point
Leo P. Kadanoff,Jack Swift +1 more
TL;DR: In this paper, a perturbation theory for the determination of transport coefficients near the critical point is presented, which is based upon processes in which one transport mode decays into several low-wave-number modes.
Journal ArticleDOI
Dynamics of Fluids near the Critical Point: Decay Rate of Order-Parameter Fluctuations
Harry L. Swinney,Donald L. Henry +1 more
TL;DR: In this paper, a comparison of the refined mode-mode coupling and decoupled-mode theories with the linewidth data for seven fluids: carbon dioxide, xenon, sulfur hexafluoride, isobutyric acid-water, 3 methylpentane-nitroethane, aniline-cyclohexane, and 2,6 lutidine-water is presented.