TITLE

Direct evaluation of the saddle splay modulus of a liquid-liquid interface using the classical mean field lattice model

AUTHOR(S)
Leermakers, F. A. M.
PUB. DATE
March 2013
SOURCE
Journal of Chemical Physics;Mar2013, Vol. 138 Issue 12, p124103
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We study the curvature dependence of the liquid-liquid (liquid-gas) interface using the well-known mean field lattice model to estimate its rigidity parameters. The Gaussian or saddle-splay modulus is found by evaluating the curvature energy of an interface onto which a saddle shape is imposed as this occurs in an Im3m cubic phase. The resulting values are consistent with those found by the classical indirect route, wherein the Gaussian bending modulus results from combining the curvature dependences of the interfacial tension in cylindrical and spherical geometries.
ACCESSION #
86446754

 

Related Articles

  • Molecular dynamics of interface rupture. Koplik, Joel; Banavar, Jayanth R. // Physics of Fluids A;Mar93, Vol. 5 Issue 3, p521 

    Several situations have been studied in which a fluid�vapor or fluid�fluid interface ruptures, using molecular dynamics simulations of 3000 to 20 000 Lennard-Jones molecules in three dimensions. The cases studied are the Rayleigh instability of a liquid thread, the burst of a liquid...

  • Partial coalescence between a drop and a liquid-liquid interface. Xiaopeng Chen; Mandre, Shreyas; Feng, James J. // Physics of Fluids;May2006, Vol. 18 Issue 5, p051705 

    This Letter reports experimental results for partial coalescence when a drop merges with an interface. We find an intermediate range of drop sizes in which the merger is not complete but a daughter drop is left behind. This phenomenon is governed primarily by inertia and interfacial tension, and...

  • Modeling and structure of mercury-water interfaces. Shelley, J. C.; Patey, G. N.; Bérard, D. R.; Torrie, G. M. // Journal of Chemical Physics;8/8/1997, Vol. 107 Issue 6, p2122 

    The modeling and nature of the physisorption of water at the metal (Hg)-water interface is explored in this paper. We have evaluated potential models that fit into three general classes that are employed in the literature. These classes are distinguished by the manner in which the isotropic...

  • Pulsating electrospray modes at the liquid-liquid interface. Alexander, Matthew S. // Applied Physics Letters;4/7/2008, Vol. 92 Issue 14, p144102 

    Unforced liquid-liquid electrosprays have been demonstrated for water/heptane and ethylene glycol/heptane couples which exhibit stable high frequency current oscillations in the kilohertz range. Using in-line flow sensor measurements, the controlled ejection of subpicoliter volumes into an...

  • A surface laser-light scattering spectrometer with adjustable resolution. Dorshow, R. B.; Hajiloo, Azardokht; Swofford, Robert L. // Journal of Applied Physics;3/1/1988, Vol. 63 Issue 5, p1265 

    Presents a study which described a surface-laser light scattering spectrometer that uses optical heterodyne detection to measure the temporal behavior of the thermally generated capillary waves at a fluid/fluid interface. Details of instrumentation; Data analysis; Experimental results.

  • CO-Switchable Oil/Water Emulsion for Pipeline Transport of Heavy Oil. Lu, Hongsheng; Guan, Xueqian; Wang, Baogang; Huang, Zhiyu // Journal of Surfactants & Detergents;Sep2015, Vol. 18 Issue 5, p773 

    By mixing an aqueous solution of tertiary amine, N, N-dimethylethanolamine (DMEA), with naphthenic acid (RCOOH) derived from heavy oil, a CO switchable zwitterionic surfactant (RCOODMEAH) aqueous system was constructed. The CO switchability of this zwitterionic surfactant was confirmed by visual...

  • The effect of scale and interfacial tension on liquid-liquid dispersion in in-line Silverson rotor-stator mixers. Hall, Steven; Pacek, Andrzej W.; Kowalski, Adam; Cooke, Mike; Rothman, David // Chemical Engineering Research & Design: Transactions of the Inst;Nov2013, Vol. 91 Issue 11, p2156 

    The effect of scale, processing conditions, interfacial tension and viscosity of the dispersed phase on power draw and drop size distributions in three in-line Silverson rotor-stator mixers was investigated with the aim to determine the most appropriate scaling up parameter. The largest mixer...

  • Effect of curvature and stress on reaction rates at solid interfaces. Tersoff, J.; Tu, Yuhai; Grinstein, G. // Applied Physics Letters;10/19/1998, Vol. 73 Issue 16 

    We analyze the effect of interface curvature and stress on reaction rates at solid–solid or solid–fluid interfaces. Curvature affects the forward and reverse reactions differently, and cannot be related simply to an interface energy. To describe the effect of stress requires at...

  • Tailoring interfacial curvature. Pàmies, Pep // Nature Materials;Feb2012, Vol. 11 Issue 2, p95 

    The article focuses on a study conducted by Marcello Cavallaro and colleagues which examines the coupling between particle geometry and curvature-driven capillary forces to produce the curvature field around vertical microposts that pin the contact line of an oil/water interface.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics