This paper studies the interaction of two droplets splashing on a stationary film. A source term is included in large-density-ratio pseudopotential lattice Boltzmann method to achieve tuneable surface tension. model offers excellent numerical accuracy and stability for droplet impacts liquid films. The influence Reynolds number, Weber film thickness, horizontal/vertical distance between crown g...

Abstract With the increase of automobiles on hand in China, automobile refueling emissions, as an important part volatile organic compounds (VOC), have been paid more and attention. Frequent is related to fuel vapor concentration operation safety gas stations. Reducing emissions can improve recovery efficiency reduce waste Therefore, research test began attract However, due long pre-processing ...

The Navier–Stokes equations for unsteady, incompressible, viscous fluids in the axisymmetric coordinate system are solved using a control volume method. The volume-of-fluid (VOF) technique is used to track the free-surface of the liquid. Model predictions are in good agreement with experimental measurements. It is found that the dynamic processes after impact are sensitive to the initial drople...

A three-dimensional numerical study of a single droplet splashing vertically on liquid film is presented. The method based the finite volume (FVM) Navier–Stokes equations coupled with fluid (VOF) method, and adaptive local mesh refinement technology adopted. It enables liquid–gas interface to be tracked more accurately, less computationally expensive. relationship between diameter free rim, hei...

Keratitis due to Acanthamoeba is a potentially sight threatening condition if unrecognised, or if inappropriate medical therapy is used.' The infection is being recognised worldwide.'A It is often associated in Europe and in the USA with contact lens wear; elsewhere, particularly in the tropics, it occurs most often in rural communities and can be associated with trauma and mud splashing.5 We p...

When a liquid drop impacts a smooth, solid, dry surface, the drop forms a radially spreading lamella, which can lead to a splash. Previous studies have focused almost exclusively on impacts perpendicular to a surface; yet it is common for drops to impact on angled or moving surfaces. The asymmetry of such impacts leads to an azimuthal variation of the ejected rim, and under certain conditions o...