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Title: Effect of an external field on capillary waves in a dipolar fluid

Abstract

The role of an external field on capillary waves at the liquid-vapor interface of a dipolar fluid is investigated using molecular dynamics simulations. For fields parallel to the interface, the interfacial width squared increases linearly with respect to the logarithm of the size of the interface across all field strengths tested. Here, the value of the slope decreases with increasing field strength, indicating that the field dampens the capillary waves. With the inclusion of the parallel field, the surface stiffness increases with increasing field strength faster than the surface tension. For fields perpendicular to the interface, the interfacial width squared is linear with respect to the logarithm of the size of the interface for small field strengths, and the surface stiffness is less than the surface tension. Above a critical field strength that decreases as the size of the interface increases, the interface becomes unstable due to the increased amplitude of the capillary waves.

Authors:
 [1];  [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1499036
Alternate Identifier(s):
OSTI ID: 1411483
Report Number(s):
SAND-2019-2233J
Journal ID: ISSN 2470-0045; PLEEE8; 672999
Grant/Contract Number:  
AC04-94AL85000; NA0003525
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 96; Journal Issue: 6; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Koski, Jason P., Moore, Stan Gerald, Grest, Gary S., and Stevens, Mark J. Effect of an external field on capillary waves in a dipolar fluid. United States: N. p., 2017. Web. doi:10.1103/PhysRevE.96.063106.
Koski, Jason P., Moore, Stan Gerald, Grest, Gary S., & Stevens, Mark J. Effect of an external field on capillary waves in a dipolar fluid. United States. doi:10.1103/PhysRevE.96.063106.
Koski, Jason P., Moore, Stan Gerald, Grest, Gary S., and Stevens, Mark J. Wed . "Effect of an external field on capillary waves in a dipolar fluid". United States. doi:10.1103/PhysRevE.96.063106. https://www.osti.gov/servlets/purl/1499036.
@article{osti_1499036,
title = {Effect of an external field on capillary waves in a dipolar fluid},
author = {Koski, Jason P. and Moore, Stan Gerald and Grest, Gary S. and Stevens, Mark J.},
abstractNote = {The role of an external field on capillary waves at the liquid-vapor interface of a dipolar fluid is investigated using molecular dynamics simulations. For fields parallel to the interface, the interfacial width squared increases linearly with respect to the logarithm of the size of the interface across all field strengths tested. Here, the value of the slope decreases with increasing field strength, indicating that the field dampens the capillary waves. With the inclusion of the parallel field, the surface stiffness increases with increasing field strength faster than the surface tension. For fields perpendicular to the interface, the interfacial width squared is linear with respect to the logarithm of the size of the interface for small field strengths, and the surface stiffness is less than the surface tension. Above a critical field strength that decreases as the size of the interface increases, the interface becomes unstable due to the increased amplitude of the capillary waves.},
doi = {10.1103/PhysRevE.96.063106},
journal = {Physical Review E},
number = 6,
volume = 96,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
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