Planing vessels usually have low ratios of resistance to weight, so they can move fast on sea surface than the displacement or semi-displacement ships. Access to higher speeds is one of the attractions for designers and users. To achieve higher speeds, reducing the hydrodynamic resistance is a necessity for this class of vessels. In this study, a 3D finite volume approach is used to analyze the...

The phosphor dip-transfer coating method is simple and flexible for transferring a preanalyzed volume of phosphor gel, which can be beneficial to the high angular color uniformity (ACU) of white light-emitting diodes (LEDs). The crux of this method is the volume control of the phosphor gel; however, the critical factors which influence the volume control remain unrevealed. In this paper, we con...

Computational Fluid Dynamics (CFD) investigations into water entry problems of a rigid flat plate with air pockets were systematically conducted. The Volume (VOF) model was utilised to capture localised slamming phenomena that occur during, and post-impact events. model's geometry modified include pocket on the impact surface investigate effect entrapment magnitude distribution forces pressures...

Abstract The paper presents numerical modelling of the liquid film spreading dynamics R21 (mol. fraction: 0.9) and R114 refrigerants mixture. We considered an outer flow along a round vertical cylinder at Reynolds number 104 various contact angles. simulation was performed in OpenFOAM software on basis volume fluid (VOF) method. have shown that wetting front deforms angles 30 50 degrees, regula...

The formation of discrete water clusters in polymer electrolyte fuel cell gas diffusion layers (GDL) can lead to increased resistance for oxygen transport the catalyst layer. This study investigates effect MPL crack propagation on cluster development a X-ray computed tomography (CT) microstructure using volume-of-fluid method (VoF). VoF calculation was compared operando CT data by voxel matchin...

This study examines the mass and Lagrangian transport, kinematic dynamic characteristics of shallow-water breaking waves, focusing on wave breaking, jet impingement processes. A multiphase Navier–Stokes flow model has been developed to track origin trajectory for splash-up using both a geometric piece-wise linear interface calculation volume-of-fluid (PLIC-VOF) particle tracking approaches. The...

This research deals with the validation of fluid dynamic models, used for simulating shoaling and breaking solitary waves on slopes, based on experiments performed at the Ecole Supérieure d’Ingénieurs de Marseille’s (ESIM) laboratory. A separate paper, also presented at this conference, reports on experiments. In a first part of this work, a fully nonlinear potential flow model based on a Bound...

Molecular dynamics (MD) and volume of fluid (VOF) are powerful methods for the simulation dynamic wetting at nanoscale macroscale, respectively, but massive computational cost MD sensitivity uncertainty boundary conditions in VOF limit their applications to other scales. In this work, we propose a multiscale strategy by enhancing simulations using self-consistent derived from MD. Specifically, ...

A liquid jet upon atomization breaks up into small droplets that are orders of magnitude smaller than its diameter. Direct numerical simulations of atomization are exceedingly expensive computationally. Thus, the need to perform multiscale simulations. In the present study, we performed multiscale simulations of primary atomization using a Volume-of-Fluid (VOF) algorithm coupled with a two-way ...