Electronic Resource
Springer
Journal of statistical physics
63 (1991), S. 1039-1051
ISSN:
1572-9613
Keywords:
Surface tension
;
flexural rigidity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The energy of a mass of liquid is evaluated asymptotically in powers of the range of the intermolecular potential divided by a typical dimension of the liquid. The leading term is the internal energy, proportional to the liquid volume. The second term is the energy of surface tension, proportional to the area of the liquid surface. The third term is proportional to an integral over this surface of the square of the mean curvature of the surface minus one-third of its Gaussian curvature. This new term has exactly the form of the bending energy of a thin elastic plate. Comparing it with the bending energy yields expressions for the flexural rigidity and the Poisson ratio of the liquid surface. This flexural rigidity of the surface leads to new terms in the equation of equilibrium of the liquid surface, in addition to the usual surface tension terms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01029998
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