The paper describes a novel implementation of the piecewise linear interface-capturing volume-of-fluid method (PLIC-VOF) in axisymmetric cylindrical coordinates. principal innovative feature involved this work is that both forward and inverse reconstruction problems are solved analytically, resulting an appreciable speed-up computing time comparison with iterative approach. All formulae introdu...

We develop, test and apply a volume of fluid (VOF) type code for the direct numerical simulation of two-fluid configurations of magnetic fluids with dynamic interfaces. Equilibrium magnetization and linear magnetic material are assumed and uniform imposed magnetic fields are considered, although extensions to nonlinear materials and to fields with spatio-temporal variability are possible. Model...

The purpose of this study was to determine the total resistance and investigate flow around a full-scale kayak. Utilizing Computational Fluid Dynamics(CFD), it deter-mined how presence rudder affects kayak hydrodynamic performance. To an-alyse flow, computational fluid dynamics based on RANS-VOF solver em-ployed. volume approach k-ω turbulence model were used in two-phase steady simulations hul...

The capillary time-step constraint is the dominant limitation on applicable in many simulations of interfacial flows with surface tension and, consequently, governs execution time these simulations. We propose a fully-coupled pressure-based algorithm based an algebraic Volume-of-Fluid (VOF) method conjunction implicit linearised treatment that can breach constraint. advection interface solved t...

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...

Moonpool is an opening in the floor or base of a hull ship which can be used to lower tools and vehicles into the sea in a protected area. In this paper, the effect of a rectangular cross section moonpool on the resistance force of a supply vessel was investigated both by experimental and numerical methods. For both methods a 1:37.2 scale of Caspian3 surface vessel was used. Experiments were ca...

As a step towards addressing scarcity of references on this topic, we compared the Eulerian and Lagrangian Computational Fluid Dynamics (CFD) approaches for solution free-surface Fluid–Solid Interaction (FSI) problems. The approach uses Finite Element Method (FEM) to spatially discretize Navier–Stokes equations. free surface is handled via volume-of-fluid (VOF) level-set (LS) equations; an Imme...

Article history: Received 17 May 2013 Received in revised form 3 April 2014 Accepted 7 April 2014 Available online 15 April 2014