Fluctuations in a fluid with a thermal gradient
Statistical Mechanics
2007-05-23 v1
Abstract
We report measurements of the temperature fluctuations in a horizontal layer of a pure fluid confined between parallel plates and heated from below. Consistent with earlier work we found that the structure factor (the square of the modulus of the Fourier transform of the temperature field) was consistent with for large horizontal wavenumbers . As decreased, increased less rapidly, passed through a maximum, and then approached zero. The results agree qualitatively, but not quantitatively, with the predictions of Ortiz de Z\'arate and Sengers.
Cite
@article{arxiv.cond-mat/0209104,
title = {Fluctuations in a fluid with a thermal gradient},
author = {Jaechul Oh and Guenter Ahlers},
journal= {arXiv preprint arXiv:cond-mat/0209104},
year = {2007}
}
Comments
4 pages, 7 figures, submitted to Physical Review Letter