Abstract
An analysis is presented of the Rayleigh component of the dynamic structure factor of a fluid under the influence of gravity and of a stationary temperature gradient. A conservative force like gravity in the absence of a temperature gradient modifies the Rayleigh spectrum, but not the integrated intensity. A dissipative thermodynamic force, like a temperature gradient, yields a modification of the Rayleigh spectrum and an enhancement of the Rayleigh-line intensity which varies as k -4 with the wave number k of the fluctuations. In the presence of both gravity and a temperature gradient, this k -4 growth law of the nonequilibrium fluctuations saturates for very small wave numbers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Physica A: Statistical Mechanics and its Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
