Publication Date
5-1-2025
Document Type
Article
Publication Title
Physical Review E
Volume
111
Issue
5
DOI
10.1103/PhysRevE.111.056201
Abstract
We simulate phase separated fluids using the Cahn-Hillard fluctuating hydrodynamic (CH-FHD) model and measure the statistical properties of capillary waves generated by thermal fluctuations. Our measurements are in good agreement with stochastic lubrication theory and molecular dynamics simulations but differ significantly from recent CH-FHD results by Zhang et al. [Phys. Rev. E 109, 024208 (2024)2470-004510.1103/PhysRevE.109.024208]. Specifically, we find that capillary wave statistics at thermodynamic equilibrium are independent of transport properties, namely viscosity and species diffusion.
Funding Number
DE-AC02-05CH11231
Funding Sponsor
U.S. Department of Energy
Department
Physics and Astronomy
Recommended Citation
J. B. Bell, A. Nonaka, and A. L. Garcia. "Comment on "brownian motion of droplets induced by thermal noise"" Physical Review E (2025). https://doi.org/10.1103/PhysRevE.111.056201
