CFX-4
Introductory Training (Dec 1999)
11 -1
CFX-4.3 V4.3.1H
Lecture 11
Useful Hints &
Documentation
CFX-4
Introductory Training (Dec 1999)
11 -2
CFX-4.3 V4.3.1H
Useful Hints
? Simplify the problem
Simplify geometry
> Ignore features that do not affect the flow
> Use as many blocks as possible to set the geometry
> Make blocks meet at complete faces
> Maintain good mesh quality.
Simplify physics
> Model the physical process that is of utmost importance
> Model the dominant flow physics.
Check grid quality.
Check boundary conditions.
Obtain an initial simple flow field.
CFX-4
Introductory Training (Dec 1999)
11 -3
CFX-4.3 V4.3.1H
Useful Hints
? Start with coarse grid and refine the grid as
required.
? Gradually build the complexity of the problem
and restart from the previous solution.
CFX-4
Introductory Training (Dec 1999)
11 -4
CFX-4.3 V4.3.1H
Documentation
? Installation manual.
? Online help
Help button on various menus
Online help in CFX-Build (F1 key)
Number of books available for printing.
? Summary booklet of commands.
? Course notes
Use them to refresh your training experience.
? FAQs
e.g,How to stop a run before it finishes?.
CFX-4
Introductory Training (Dec 1999)
11 -5
CFX-4.3 V4.3.1H
On-Line Documentation
? CFX-4
Environment
Examples
Installation
Pre-Processing
Post-Processing
Solver.
? to print the list of books available on line
cfx4doc -list
? to send the document to the printer
cfx4doc -print <book>
CFX-4
Introductory Training (Dec 1999)
11 -6
CFX-4.3 V4.3.1H
Documentation
?CFX-4,Solver
1,INTRODUCTION - New features
2,THE COMMAND LANGUAGE,AN OVERVIEW
3,PROBLEM SIZE AND BASIC OPTIONS - >>CFX4
4,GEOMETRY AND TOPOLOGY - >>MODEL TOPOLOGY
5,PHYSICAL MODELS AND FLUID PROPERTIES - >>MODEL DATA
6,SOLUTION ALGORITHMS - >>SOLVER DATA
7,GRIDDING OPTIONS - >> CREATE GRID
8,BOUNDARY CONDITIONS - >> MODEL BOUNDARY CONDITIONS
9,OUTPUT OPTIONS - >>OUTPUT OPTIONS
10,FORTRAN USER ROUTINES - description of user fortran routines
11,FURTHER DETAILS FOR ADVANCED USERS - data structures
12,MATHEMATICAL MODELS - physical models,boundary conditions
CFX-4
Introductory Training (Dec 1999)
11 -7
CFX-4.3 V4.3.1H
Documentation
13,DISCRETISATION AND SOLUTION ALGORITHMS
14,SUMMARY OF THE CFX-4 SOLVER COMMANDS AND
KEYWORDS
15,REFERENCES
16,APPENDIX A,DEFAULT UNITS FOR DIMENSIONAL
KEYWORDS
17,APPENDIX B,THE PROPERTIES DATABASE
18,APPENDIX C,MODEL COMBINATIONS THAT ARE
PERMITTED IN CFX-4.3.