Cfx12 13 Ccl Outfile

7/29/2019 Cfx12 13 Ccl Outfile

1/26

13-1ANSYS, Inc. Proprietary 2009 ANSYS, Inc. All rights reserved.

April 28, 2009Inventory #002598

Chapter 13

Solver .out File and CCL

Introduction to CFX


2/26

Out Fi le



Training ManualSolver Output File

Produced by the ANSYS CFX-Solver and contains information about

your simulation:

a) Model set-up

b) The state of the solution during the run

c) Job statistics for the particular run

Now lets take a detailed look at an out file

CFX-Solver

CFX-Pre

CFX-Post

.def

.res

.cfx.cfx, .def, .res

.out

.gtm, .def


3/26

Out Fi le



Training Manual

SolverInformation

a) Model Setup

The out file


4/26

Out Fi le



Training Manual

Physics definitionCFX Command Language

(CCL)

a) Model Setup


5/26

Out Fi le



Training Manual

If an Initial Values file is

provided, the Interpolatorwill run to copy /

interpolate variables

b) Interpolator

Memory requirementsshown here are forthe interpolator only

Details of theinterpolation process

are shown


6/26

Out Fi le



Training Manual

If solving in parallel the

Partitioner will run todivide up the simulationinto multiple partitions

c) Partitioner

Memory requirementsshown here are for the

partitioner only

Details of the partitioningprocess are shown


7/26

Out Fi le



Training Manuald) Solver

Mesh quality checks,mesh statistics and

GGI intersectiondetails are shown

here

188 MB ofRAM allocated

The start of the Solver

process

Memory requirementsshown here are for the

Solver. If memory errorsoccur check if its the

Interpolator, Partitioner orSolver process


8/26

Out Fi le



Training Manual

Diagnostics shown as the solver iterates towards a solution

Upper case OK is good. Lower case okmeans youre on the limit. F means failed

to solve the equation. Reducing thetimestep may help avoid ok and F. The

first few iterations may show ok and F

and can be ignored as long as they go away

e) The State of the Solution


9/26

Out Fi le



Training Manual

When the solution finishes the Imbalances are shown

Equation Imbalance indomain

f) Final Imbalances


10/26

Out Fi le



Training Manual

Other data printed at the end of the out file include Viscous and

Pressure forces and torques on walls, min / max variable values

and detailed CPU requirements

g) Other Solution Data


11/26

Out Fi le



Training ManualKey Point

The .out file contains information on the physics, solution

progress, and execution control.


12/26

CCL



Training Manual

CFX Command Language object definition language which

underlies all CFX products

Object parameters define the state of

an object

GUIs present object parameters in acontextual manner (parametersshown/hidden based on GUI selections)

Allows for easy modifications

E.g. modifying an inlet velocity at a

boundary

Advanced functionality (without

complexity)

i.e. loops and logic

CCL CommandInterpreter

User Input/Interface

Processing Engine

CCL

What is CCL?


13/26

CCL



Training Manual

CCL Statements can be classified into three

categories:1. Object and parameter definitions

2. Actions

3. Power Syntax

1. Example of Parameter Definition:

CCL Instruction Types


14/26

CCL



Training Manual

2. Example of an Action Command:

A CFX-Post session file which includes a set ofactions.

3. Example of Power Syntax:

Lines of Power Syntax are identified in a

CCL file by a special character ! at the

start of each line.

CCL Instruction Types


15/26

CCL



Training Manual

Terminology: Parameter Name = Parameter Value

CCL follows a data hierarchy. In order to specify

the Temperature, the associated parents(Boundary, Domain, Flow) must be included

As long as the parameters are of the sameobject, order is unimportant

An object started must be ended

If data is set in one place and modified in

another, the latter definition overrides the first

Terminology: The object Flowis the parent of

the object Domain, and this is Flow Analysis 1

Data Hierarchy


16/26

CCL



Training Manual

The syntax rules of CCL are similar to many programming

languages. Below are a few syntax rules but for acomplete list, please search the help documentation (CCLSyntax) Case Sensitivity

Everything in the file is sensitive to case.

Effect of spaces

Spaces appearing before or after a name are not considered to be part ofthe name.

Single spaces appearing inside a name are significant. Multiple spaces and tabs appearing inside a name are treated as a single

space.

CCL names definition

In simple syntax, a CCL name must be at least one character. This first character must be alphabetic; there may be any number of

subsequent characters and these can be alphabetic, numeric, space or tab.

Continued on next slide

Syntax


17/26

CCL



Training Manual

Parameter Values STRING

The characters $ and # have a special meaning. A string beginning with $ is evaluated asa Power Syntax variable, even if it occurs within a simple syntax statement.

The characters such as [, ],{ and } are special only if used in conjunction with $. Followinga $, such characters terminate the preceding Perl variable name

STRING LISTA list of string items separated by commas. e.g names = one, two, three, four

INTEGER If a real is specified when an integer is needed, the real is rounded to the nearest integer.

REALa = 12.24a = 1.224E01a = 12.24 [m s^-1]

REAL LIST

All items in the list must have the same dimensions

LOGICAL Several forms are acceptable: YES, TRUE, 1 or ON are all equivalent; NO or FALSE or 0

or OFF are all equivalent; initial letter variants Y, T, N, F are accepted

Continuation character \

Syntax


18/26

CCL



Training Manual

CCL is used throughout CFX and other CFX products, a fewexamples are:

CFX-Pre: Physics definition, Session Files

CFX-Solve: Command File (echoed in the OUT file)

CFX-Post : State files, Session Files

CFX-TurboGrid: State Files

CCL Examples


19/26

CCL



Training ManualCFX-Pre


20/26

CCL



Training ManualCFX-Solver / .out File


21/26

CCL



Training ManualCFD-Post


22/26

CCL



Training Manual

Users can modify a .def filemanually using CCL instead of

using the CFX-Pre GUI

Two alternate methods of

modifying a DEF file: Solver GUI

Command Lines

CFX Pre

DEF

CFX Solver

RES

Reload .CFX or.DEF file

Modify Settings

Quick Modifications


23/26

CCL



Training Manual

SOLVER METHOD

DEF

CFX Solver

RES

Modify Settings

Quick Modifications

CCL


24/26

CCL



Training Manual

COMMAND LINE METHOD

1. In the CFX-Launcher window, click Tools > Command Line

2. In command screen type cfx5cmdsreaddeff i lename.deftextccl1

3. Edit ccl1in notepad and save

4. In command screen type cfx5cmdswritedeff i lename.deftextccl1

DEF

CFX Solver

RES

Modify Settings

Quick Modifications

CCL


25/26

CCL



Training ManualQuick Modifications

Using a CCL file

Create a text file with

modified CCL

Save As .ccl file, (e.g.

bc1.ccl)

On the Solvertab of the Run

Definition form in the Solver

manager, enter an Argumentas follows:

-ccl bc1.ccl

Or, start the solution from

the command line, using:

cfx5solvedef run.defccl

bc1.ccl

CCL


26/26

CCL

ANSYS Inc Proprietary April 28 2009

Training Manual

CCL is the language which links the user with the software.

Sometimes, it is more efficient to bypass the GUI and

manipulate the CCL manually.

Key Point

Documents

Cfx12 13 Ccl Outfile