Using the Eulerian Multiphase Model for Granular Flow
| Availability | File |
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Tutorial - pdf |
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Mesh |
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Case and Data |
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UDF |
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Using Dynamic Meshes
| File | |
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Tutorial - pdf |
|
Mesh |
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Case and Data |
|
UDF |
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Use of User-Defined Scalars and User-Defined Memories for Modeling Ohmic Heating
| Availability | File |
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Tutorial - pdf |
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Mesh |
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Case and Data |
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UDF |
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Simulation of Wave Generation in a Tank
| Availability | File |
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Tutorial - pdf |
|
Mesh |
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Case and Data |
|
UDF |
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Cold Flow Simulation Inside an SI Engine
| Availability | File |
|
Tutorial - pdf |
|
Mesh |
|
Case and Data |
|
Profile |
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Introduction
The purpose of this tutorial is to provide guidelines and recommendations for setting up and solving a dynamic mesh (DM) case along with the six degree of freedom (6DOF) solver and the volume of
fluid (VOF) multiphase model. The 6DOF UDF is used to calculate the motion of the moving body which also experiences a buoyancy force as it hits the water (modeled using the VOF model). Gravity and the buoyancy forces drive the motion of the body and the dynamic mesh This tutorial demonstrates how to do the following
Use the 6DOF solver to calculate motion of the moving body
Use the VOF multiphase model to model the buoyancy force experienced by the moving body
Set up and solve the dynamic mesh case
Create TIFF files for graphic visualization of the solution
Post-process the resulting data
Introduction
This tutorial examines fluid flow through a two-dimensional channel,
where one wall of the channel has a user-defi ned temperature pro lfie
applied to it. The purpose of this tutorial is to demonstrate the
ability of FLUENT to use user-de fined functions (UDFs) to specify a
position-dependent variable on the wall boundary condition
Introduction
This tutorial examines the flow of liquid metal through a two
dimensional channel. The viscosity of the liquid metal is modeled as a
function of the temperature using a user-defi ned function
Problem Description
The problem considered in this tutorial is shown schematically in
Figure. As the symmetry condition is imposed at the centerline, only
half the channel is modeled, The wall of the channel is split into two
parts: wall-2, which has a temperature of 280 K and wall-3 which has a
temperature of 290 K. The temperature-dependent viscosity of the liquid
metal will respond to this change in wall temperature. The
function, named cell viscosity, is defi ned on a cell using DEFINE
PROPERTY. Two real variables are introduced: temp, the value of
C_T(cell, thread), and mu, the laminar viscosity computed by the
function. The value of the tempertaure is checked, and based upon the
range into which it falls, the appropriate value of mu is computed. At
the end of the function, the computed value for mu is returned to the
solver
Introduction
This tutorial models the evaporation and combustion of a liquid fuel,
using the dispersed phase modeling capability to compute coupled gas
flow and liquid spray physics. The mixture-fraction/PDF equilibrium
chemistry model is used to predict the combustion of the vaporized fuel.
In this tutorial you will learn how to
Prepare a probability density function (PDF) file for a liquid fuel system -
Defi ne FLUENT inputs for PDF chemistry modeling -
De fine a discrete second phase of evaporating liquid droplets -
Calculate the flow field using the pressure based solver, including coupling between the discrete -
liquid fuel droplets and continuous phase
The mixture-fraction/PDF modeling approach allows you to model non-premixed turbulent combustion by solving a transport equation for a single conserved scalar, the mixture fraction. Multiple chemical species including radicals and intermediate species, may be included in the problem de nition and their concentrations may be derived from the predicted mixture fraction using the assumption of equilibrium chemistry. Property data for the species are accessed through a chemical database and turbulence-chemistry interaction is modeled using a betha-PDF
Introduction
The standard pressure boundary conditions for compressible flow fix specific flow variables at the boundary (e.g., static pressure at an
outlet boundary). a
As a result, pressure waves incident on the boundary will reflect in an unphysical manner, leading to local errors. The effect are more pronounced for internal flow problems where boundaries are usually close to geometry inside the domain, such as compressor or turbine blade rows
The turbo-specific non-reflecting boundary conditions (NRBCs) permit waves to pass through the boundaries without spurious reflections. The method used in FLUENT is based on the Fourier transformation of solution variables at the non-reflecting boundary
This tutorial demonstrates how to do the following
Set up and solve the turbine blade flow eld using the standard pressure outlet boundary treatment -
Activate the turbo-speci c NRBCs and solve the problem again -
Compare the results for the standard and non-reflecting pressure boundaries -
Welcome to the world of CFD