Density profiles at liquid–vapor and liquid–liquid interfaces: An integral equation study

1997 ◽  
Vol 107 (17) ◽  
pp. 6925-6935 ◽  
Author(s):  
Stanislav Iatsevitch ◽  
Frank Forstmann
2007 ◽  
Vol 126 (12) ◽  
pp. 124702 ◽  
Author(s):  
I. P. Omelyan ◽  
R. Folk ◽  
I. M. Mryglod ◽  
W. Fenz

1996 ◽  
Vol 100 (14) ◽  
pp. 5941-5948 ◽  
Author(s):  
Andrij Trokhymchuk ◽  
Orest Pizio ◽  
Douglas Henderson ◽  
Stefan Sokołowski

2010 ◽  
Vol 114 (43) ◽  
pp. 18656-18663 ◽  
Author(s):  
Miguel Jorge ◽  
György Hantal ◽  
Pál Jedlovszky ◽  
M. Natália D. S. Cordeiro

Author(s):  
Ekaterina Titova ◽  
Dmitri Alexandrov

Abstract The boundary integral method is developed for unsteady solid/liquid interfaces propagating into undercooled binary liquids with convection. A single integrodifferential equation for the interface function is derived using the Green function technique. In the limiting cases, the obtained unsteady convective boundary integral equation (CBIE) transforms into a previously developed theory. This integral is simplified for the steady-state growth in arbitrary curvilinear coordinates when the solid/liquid interface is isothermal (isoconcentration). Finally, we evaluate the boundary integral for a binary melt with a forced flow and analyze how the melt undercooling depends on P\'eclet and Reynolds numbers.


2009 ◽  
Vol 79 (1) ◽  
Author(s):  
I. P. Omelyan ◽  
R. Folk ◽  
A. Kovalenko ◽  
W. Fenz ◽  
I. M. Mryglod

2006 ◽  
Vol 129 (7) ◽  
pp. 894-901 ◽  
Author(s):  
Shi-Ming Li ◽  
Danesh K. Tafti

A nonlocal pressure equation is derived from mean-field free energy theory for calculating liquid-vapor systems. The proposed equation is validated analytically by showing that it reduces to van der Waals’ square-gradient approximation under the assumption of slow density variations. The proposed nonlocal pressure is implemented in the mean-field free energy lattice Boltzmann method (LBM). The LBM is applied to simulate equilibrium liquid-vapor interface properties and interface dynamics of capillary waves and oscillating droplets in vapor. Computed results are validated with Maxwell constructions of liquid-vapor coexistence densities, theoretical relationship of variation of surface tension with temperature, theoretical planar interface density profiles, Laplace’s law of capillarity, dispersion relationship between frequency and wave number of capillary waves, and the relationship between radius and the oscillating frequency of droplets in vapor. It is shown that the nonlocal pressure formulation gives excellent agreement with theory.


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