文档介绍：Tutorial: Dam-Break Simulation Using FLUENT’s Volume of
Fluid Model
Purpose
This tutorial examines the dam-break problem using the Volume of Fluid (VOF) multiphase
model.
This tutorial demonstrates how to do the following:
• Set up a dam-break problem.
• Choose the time step by estimating the maximum possible velocity of the interface
and the grid cell dimension.
• Solve the problem using the VOF model.
• Manipulate the solution parameters.
Prerequisites
This tutorial assumes that you are familiar with the FLUENT interface and that you have
a good understanding of basic setup and solution procedures. In this tutorial, you will use
VOF multiphase model, so you should have some experience with it. This tutorial will not
cover the mechanics of using this model; instead, it will focus on the application of this
model to solve a dam-break problem.
If you have not used this model before, it would be helpful to first refer to the FLUENT
User’s Guide and the FLUENT Tutorial Guide.
Problem Description
The initial setup of the dam-break problem is shown in Figure 1.
In this problem, a rectangular column of water, in hydrostatic equilibrium, is confined
between two walls. Gravity is acting downwards with a magnitude of - m/s2. At the
beginning of the calculation, the right wall is removed and the water is allowed to flow out
to the h