ESI-Group CFD-VIEW V2014.0 用户手册：高级数值模拟工具 - CSDN文库

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CFD-VIEW V2014.0 User Manual

6

Data Transfer Facility (DTF)

The Data Transfer Facility (DTF) is a database mechanism that merges all of the codes in the CFD-ACE+

environment, including CFD-VIEW, allowing simulation and problem data to be placed in a single file. The

application codes of the software access the DTF file through an application interface. Simulation data and

graphical output are accessed by name rather than by position in a file so that each application code can share

data without having to know the structure of the entire data set.

Running CFD-VIEW from the Command Line

CFD-VIEW can be launched from a command line prompt using the following CFD-VIEW command line options:

MODELFILE

This option is added in the CFD-VIEW command line to start CFD-VIEW with an existing model.

The format of this command is:

CFD-VIEW modelfile

[OPTIONS] DATAFILE

This option is added in the CFD-VIEW command line to start CFD-VIEW with an empty model and import a data file.

The format of this command is:

CFD-VIEW [options] datafile

MODELFILE [OPTIONS] DATAFILE

This option is added in the CFD-VIEW command line to start CFD-VIEW with an existing model and open a new data

file.

The format of this command is:

CFD-VIEW modelfile [options] datafile

-F DTFFILE

This option is added in the CFD-VIEW command line to start CFD-VIEW with an empty model and import a DTF file.

The format of this command is:

CFD-VIEW -f dtffile

-S SCRIPT (OR -SCRIPT SCRIPT)

This option is added in the CFD-VIEW command line to start CFD-VIEW and execute a Python script.

The format of this command is:

CFD-VIEW -s script

CFD-VIEW V2014.0 User Manual

10

Transferring files via ftp

ESI’s ftp site can handle large files, so do not be concerned about the size of DTF files that you upload.

Use your favorite ftp client or web browser to upload files to our ftp site, ftp://ftp.esi-cfd.com. The login name and

password for the public account on the ftp site is listed in the Knowledge Base section of the CFD Portal.

Customers who prefer to use a web browser with drag-and-drop functionality should use the following syntax:

ftp://username:password@ftp.esi-cfd.com/pub

After you have accessed ftp.esi-cfd.com, you can create a directory for your files under the pub subdirectory. In

your email to Support, inform Support where the uploaded files are located.

Security concerns when using ftp

If you are concerned about protecting proprietary data, please be aware of the following:

• You can choose to send output files, log files or scripts instead of GGD, VGD, DTF, etc. files. Also, in case of

DTF files, you can choose to send only the output of the view data command:

•

% DTF -vd model.DTF

This prints only the simulation data contained in the DTF file. There is no geometry or boundary condition

information printed. Support can resolve many problems just by looking at the simulation data settings.

• It is ESI Group policy to handle all customer data as confidential, even if a Non-Disclosure Agreement has

not been executed.

• ESI Group will sign a Non-Disclosure Agreement upon request. Contact your sales agent or Distributor to

discuss this option.

• Customer Support can set up password-protected ftp accounts on the ftp site so that no other users can

see your directory or files on the ftp server. No one but you and Support will know you are putting files on

the ftp server. Ask Support if you wish to have a password-protected ftp account.

• Support may be able to help you using GoToMeeting. GoToMeeting enables an on-line meeting where ESI

CFD Support Engineers can see your desktop, including your DTF file, and see the problems you are having

without the need for you to transfer any files off of your computer. GoToMeeting can allow the remote

party (Support) to take control of the mouse and drive the session, but this does not happen by default

(you would have to give permission). Please request a GoToMeeting session with Support if you feel this is

the best way to resolve your problem.

• You can often create a simplified model that represents your real model, but has different boundary

condition values and a different geometry. Sometimes in the process of creating a simplified model to

send to Support, you may discover that the simplified model works fine, and this additional information is

often enough to identify the root cause of the problem.

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