Now showing items 1-10 of 413
Three-dimensional transient complex free surface flows: Numerical simulation of XPP fluid
In this paper we present a finite difference MAC-type approach for solving three-dimensional viscoelastic incompressible free surface flows governed by the eXtended Pom-Pom (XPP) model, considering a wide range of parameters. ...
Numerical assessment of mass conservation on a MAC-type method for viscoelastic free surface flows
A numerical study of mass conservation of MAC-type methods is presented, for viscoelastic free-surface flows. We use an implicit formulation which allows for greater time steps, and therefore time marching schemes for ...
A marker-and-cell approach to free surface 2-D multiphase flows
This work describes a methodology to simulate free surface incompressible multiphase flows. This novel methodology allows the simulation of multiphase flows with an arbitrary number of phases, each of them having different ...
Application of the PTT Model to Axisymmetric Free Surface Flows
(Amer Inst Physics, 2013-01-01)
This work is concerned with numerical simulation of axisymmetric viscoelastic free surface flows using the Phan-Thien-Tanner (PTT) constitutive equation. A finite difference technique for solving the governing equations ...
Numerical investigation of three dimensional viscoelastic free surface flows: Impacting drop problem
This work presents a numerical investigation of three dimensional viscoelastic free surface flows. In particular, using two different numerical methodologies, we have simulated a typical free-surface benchmark flow problem: ...
Clustering of floaters on the free surface of a turbulent flow: An experimental study
We present an experimental study of the statistical properties of millimeter-size spheres floating on the surface of a turbulent flow. The flow is generated in a layer of liquid metal by an electromagnetic forcing. By using ...
An implicit technique for solving 3D low Reynolds number moving free surface flows
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
This paper describes the development of an implicit finite difference method for solving transient three-dimensional incompressible free surface flows. To reduce the CPU time of explicit low-Reynolds number calculations, ...
Numerical solution of the eXtended Pom-Pom model for viscoelastic free surface flows
(Elsevier B.V., 2011-02-01)
In this paper we present a finite difference method for solving two-dimensional viscoelastic unsteady free surface flows governed by the single equation version of the eXtended Pom-Pom (XPP) model. The momentum equations ...
Modeling of free surface flow in a helical channel with finite pitch
(Abcm Brazilian Soc Mechanical Sciences & EngineeringRio De Janeiro RjBrasil, 2007)