Hydrodynamic Fluctuations in Fluids and Fluid Mixtures book cover

Hydrodynamic Fluctuations in Fluids and Fluid Mixtures

This book deals with density, temperature, velocity and concentration fluctuations in fluids and fluid mixtures. The book first reviews thermal fluctuations in equilibrium fluids on the basis of fluctuating hydrodynamics. It then shows how the method of fluctuating hydrodynamics can be extended to deal with hydrodynamic fluctuations when the system is in a stationary nonequilibrium state. In contrast to equilibrium fluids where the fluctuations are generally short ranged unless the system is close to a critical point, fluctuations in nonequilibrium fluids are always long-ranged encompassing the entire system. The book provides the first comprehensive treatment of fluctuations in fluids and fluid mixtures brought out of equilibrium by the imposition of a temperature and concentration gradient but that are still in a macroscopically quiescent state. By incorporating appropriate boundary conditions in the case of fluid layers, it is shown how fluctuating hydrodynamics affects the fluctuations close to the onset of convection. Experimental techniques of light scattering and shadowgraphy for measuring nonequilibrium fluctuations are elucidated and the experimental results thus far reported in the literature are reviewed.

Physics, chemical physics, chemical engineering and Mechanical Engineering researchers

Paperback, 320 Pages

Published: April 2006

Imprint: Elsevier

ISBN: 978-0-444-51515-5


  • 1. Introduction2. Nonequilibrium Thermodynamics3. Fluctuations in Fluids in Thermodynamic Equilibrium4. Thermal Nonequilibrium Fluctuations in One-Component Fluids5. Thermal Nonequilibrium Fluctuations in Fluid Mixtures6. Finite-Size Effects in Hydrodynamic Fluctuations7. Thermal Nonequilibrium Fluctuations in One-Component-Fluid Layers8. Thermal Fluctuations Close to the Rayleigh-Bénard Instability9. Thermal Nonequilibrium Fluctuations in Binary-Fluid Layers10. Experiments on Nonequilibrium Fluctuations in the Rayleigh-Bénard Problem11. Other Nonequilibrium Fluctuations12. EpilogueBibliographyList of Symbols and Corresponding SI UnitsList of AbbreviationsSubject Index


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