Two-Fluid Model Approach for Transient Analysis of Free-Surface-Pressurized Flows.

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Simulation of Free Surface Compressible Flows Via a Two Fluid Model

The purpose of this communication is to discuss the simulation of a free surface compressible flow between two fluids, typically air and water. We use a two fluid model with the same velocity, pressure and temperature for both phases. In such a numerical model, the free surface becomes a thin three dimensional zone. The present method has at least three advantages: (i) the free-surface treatmen...

Transient free convective flow of a micropolar fluid between two vertical walls

Generalized Finite Difference Method for Two-dimensional Transient Free- Surface Flows

In this study, we developed a novel numerical model, based on the generalized finite difference method (GFDM), to simulate two-dimensional unsteady free-surface flows. The mathematical descriptions for two-dimensional unsteady free-surface flows, which can be derived by vertically integrating the Navier-Stokes equations, are the well-known shallow water equations. The shallow water equations ar...

A Novel algorithm of Advection procedure in Volume of Fluid Method to model free surface flows

In this study the developed procedure of Advection in Volume of Fluid (VOF) method for free surface modeling is presented. Two-step projection method is implemented for solution of RANSE equations discretized by finite difference method on the staggered and Cartesian grids. Applying Youngs’ algorithm in staggered grids, assuming that fluid particles in the cell have the same velocity of the cel...