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2000-2008 OpenCFD Ltd
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OpenFOAM®
OpenFOAM 1.5
User Guide
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2000-2008
OpenCFD Ltd
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Contents
1
Introduction
2
Tutorials
2.1
Lid-driven cavity flow
2.1.1
Pre-processing
2.1.2
Viewing the mesh
2.1.3
Running an application
2.1.4
Post-processing
2.1.5
Increasing the mesh resolution
2.1.6
Introducing mesh grading
2.1.7
Increasing the Reynolds number
2.1.8
High Reynolds number flow
2.1.9
Changing the case geometry
2.1.10
Post-processing the modified geometry
2.2
Stress analysis of a plate with a hole
2.2.1
Mesh generation
2.2.2
Running the code
2.2.3
Post-processing
2.2.4
Exercises
2.3
Breaking of a dam
2.3.1
Mesh generation
2.3.2
Boundary conditions
2.3.3
Setting initial field
2.3.4
Fluid properties
2.3.5
Time step control
2.3.6
Discretisation schemes
2.3.7
Linear-solver control
2.3.8
Running the code
2.3.9
Post-processing
2.3.10
Running in parallel
2.3.11
Post-processing a case run in parallel
3
Applications and libraries
3.1
The programming language of OpenFOAM
3.1.1
Language in general
3.1.2
Object-orientation and C++
3.1.3
Equation representation
3.1.4
Solver codes
3.2
Compiling applications and libraries
3.2.1
Header
.H
files
3.2.2
Compiling with
wmake
3.2.3
Removing dependency lists:
wclean
and
rmdepall
3.2.4
Compilation example: the
turbFoam
application
3.2.5
Debug messaging and optimisation switches
3.2.6
Linking new user-defined libraries to existing applications
3.3
Running applications
3.4
Running applications in parallel
3.4.1
Decomposition of mesh and initial field data
3.4.2
Running a decomposed case
3.4.3
Distributing data across several disks
3.4.4
Post-processing parallel processed cases
3.5
Standard solvers
3.6
Standard utilities
3.7
Standard libraries
4
OpenFOAM cases
4.1
File structure of OpenFOAM cases
4.2
Basic input/output file format
4.2.1
General syntax rules
4.2.2
Dictionaries
4.2.3
The data file header
4.2.4
Lists
4.2.5
Scalars, vectors and tensors
4.2.6
Dimensional units
4.2.7
Dimensioned types
4.2.8
Fields
4.2.9
Directives and macro substitutions
4.3
Time and data input/output control
4.4
Numerical schemes
4.4.1
Interpolation schemes
4.4.2
Surface normal gradient schemes
4.4.3
Gradient schemes
4.4.4
Laplacian schemes
4.4.5
Divergence schemes
4.4.6
Time schemes
4.4.7
Flux calculation
4.5
Solution and algorithm control
4.5.1
Linear solver control
4.5.2
Solution under-relaxation
4.5.3
PISO and SIMPLE algorithms
4.5.4
Other parameters
5
Mesh generation and conversion
5.1
Mesh description
5.1.1
Mesh specification and validity constraints
5.1.2
The
polyMesh
description
5.1.3
The
cellShape
tools
5.1.4
1- and 2-dimensional and axi-symmetric problems
5.2
Boundaries
5.2.1
Specification of patch types in OpenFOAM
5.2.2
Base types
5.2.3
Primitive types
5.2.4
Derived types
5.3
Mesh generation with the
blockMesh
utility
5.3.1
Writing a
blockMeshDict
file
5.3.2
Multiple blocks
5.3.3
Creating blocks with fewer than 8 vertices
5.3.4
Running
blockMesh
5.4
Mesh generation with the
snappyHexMesh
utility
5.4.1
The mesh generation process of
snappyHexMesh
5.4.2
Creating the background hex mesh
5.4.3
Cell splitting at feature edges and surfaces
5.4.4
Cell removal
5.4.5
Cell splitting in specified regions
5.4.6
Snapping to surfaces
5.4.7
Mesh layers
5.4.8
Mesh quality controls
5.5
Mesh conversion
5.5.1
fluentMeshToFoam
5.5.2
starToFoam
5.5.3
gambitToFoam
5.5.4
ideasToFoam
5.5.5
cfxToFoam
5.6
Mapping fields between different geometries
5.6.1
Mapping consistent fields
5.6.2
Mapping inconsistent fields
5.6.3
Mapping parallel cases
6
Post-processing
6.1
paraFoam
6.1.1
Overview of
paraFoam
6.1.2
The
Properties
panel
6.1.3
The
Display
panel
6.1.4
The button toolbars
6.1.5
Manipulating the view
6.1.6
Contour plots
6.1.7
Vector plots
6.1.8
Streamlines
6.1.9
Image output
6.1.10
Animation output
6.2
Post-processing with
Fluent
6.3
Post-processing with
Fieldview
6.4
Post-processing with
EnSight
6.4.1
Converting data to
EnSight
format
6.4.2
The
ensight74FoamExec
reader module
6.5
Sampling data
6.6
Monitoring and managing jobs
6.6.1
The
foamJob
script for running jobs
6.6.2
The
foamLog
script for monitoring jobs
7
Models and physical properties
7.1
Thermophysical models
7.1.1
Thermophysical property data
7.2
Turbulence models
A
FoamX
case manager (obsolete in v1.5)
A.1
The name server and host browser
A.1.1
Notes for running the name server
A.2
The
JAVA
GUI
A.3
The case browser
A.3.1
Opening a root directory
A.3.2
Creating a new case
A.3.3
Opening an existing case
A.3.4
Deleting an existing case
A.3.5
Cloning an existing case
A.3.6
Unlocking an existing case
A.3.7
The process editor
A.3.8
Running OpenFOAM utilities
A.4
The case server
A.4.1
Importing an existing mesh
A.4.2
Reading a mesh
A.4.3
Setting boundary patches
A.4.4
Setting the fields
A.4.5
Editing the dictionaries
A.4.6
Saving data
A.4.7
Running solvers
A.4.8
Running utilities
A.4.9
Closing the case server
A.5
Configuration to run
FoamX
A.5.1
JAVA
A.5.2
Paths to case files
B
Miscellaneous reference information
B.1
Running a decomposed case in parallel using
MPICH
B.1.1
Same executable pathname on all nodes
B.1.2
Different executable pathname on different nodes
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