Numerical study of the effect of nonlinear control on the behavior of a liquid drop in elongational flow with vorticity

2011 ◽  
Vol 71 (2) ◽  
pp. 185-203 ◽  
Author(s):  
Marco A. H. Reyes ◽  
A. A. Minzoni ◽  
E. Geffroy
Keyword(s):  
Nonlinear Control ◽  
Liquid Drop ◽  
Numerical Study ◽  
Elongational Flow

Numerical study of Rayleigh fission of a charged viscous liquid drop

2017 ◽  
Vol 2 (11) ◽  
Author(s):  
Neha Gawande ◽  
Y. S. Mayya ◽  
Rochish Thaokar
Keyword(s):  
Viscous Liquid ◽  
Liquid Drop ◽  
Numerical Study

Numerical Modeling of Liquid Drop Spreading Behavior on Inclined Surfaces

2009 ◽  
Author(s):  
Young-Gil Park ◽  
Anthony M. Jacobi
Keyword(s):  
Solid Surface ◽  
Liquid Drop ◽  
Numerical Study ◽  
Contact Angle Hysteresis ◽  
Contact Angles ◽  
Quasi Equilibrium ◽  
Liquid Drops ◽  
Spreading Behavior ◽  
Inclined Surfaces ◽  
Liquid Vapor

A numerical study was conducted on the spreading behavior of liquid drops on flat solid surfaces. The model predicts the shape of liquid-vapor interface under static equilibrium using an unstructured surface grid composed of triangular elements. Incremental movement of base contour, i.e. solid-liquid-vapor contact line, is also captured such that the constrained boundary conditions, i.e. advancing and receding contact angles, can be satisfied. The numerical model is applied to a common experiment that studies the behavior of liquid drops on inclined surfaces, where the shape of the drops change in response to an alteration of total volume or gravitational direction. On a heterogeneous surface that has contact angle hysteresis, the shape of the base contour on the solid surface is not determined uniquely but rather dependent upon history. This study demonstrates such dependence by comparing the spreading of a liquid drop on a solid surface with different quasi-equilibrium paths.

scholarly journals Numerical study of the3D-shape of a drop immersed in a fluid under an elongational flow with vorticity

2017 ◽  
Vol 792 ◽  
pp. 012005
Author(s):  
A S Sanjuan ◽  
M A H Reyes ◽  
A A Minzoni ◽  
E Geffroy
Keyword(s):  
Numerical Study ◽  
Elongational Flow

Numerical Simulation of Hydrodynamics of a Heavy Liquid Drop Covered by Vapor Film in a Water Pool

2002 ◽  
Author(s):  
W. M. Ma ◽  
Z. L. Yang ◽  
A. Giri ◽  
B. R. Sehgal
Keyword(s):  
Level Set ◽  
Liquid Drop ◽  
Numerical Study ◽  
Immiscible Fluids ◽  
Navier Stokes ◽  
Vapor Film ◽  
Water Pool ◽  
Reactor Accident ◽  
Density Ratios ◽  
Level Set Approach

A numerical study on the hydrodynamics of a droplet covered by vapor film in water pool is carried out. Two level set functions are used as to implicitly capture the interfaces among three immiscible fluids (melt-drop, vapor and coolant). This approach leaves only one set of conservation equations for the three phases. A high-order Navier-Stokes solver, called Cubic-Interpolated Pseudo-Particle (CIP) algorithm, is employed in combination with level set approach, which allows large density ratios (up to 1000), surface tension and jump in viscosity. By this calculation, the hydrodynamic behavior of a melt droplet falling into a volatile coolant is simulated, which is of great significance to reveal the mechanismof steam explosion during a hypothetical severe reactor accident.

Numerical study of the low-frequency atomic dynamics in a Lennard-Jones glass

1998 ◽  
Vol 77 (2) ◽  
pp. 473-484 ◽  
Author(s):  
M. Sampoli, P. Benassi, R. Dell'Anna,
Keyword(s):  
Numerical Study ◽  
Low Frequency ◽  
Lennard Jones
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