CFPOST User's Guide - File Specification Commands

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File Specification Commands

grid - Specify the name of the grid (.cgd) file
solution - Specify the name of the solution (.cfl) file
chemistry - Specify the name of the chemistry data (.chm) file

grid - Specify the name of the grid (.cgd) file

grid file [mode {read_only|read_write}]

	file		The name of the file to be used for retrieving geometry data during subsequent processing. If a `grid` command is not specified then any reference to the geometry data will be resolved from the file specified on the `solution` command.

The mode option may be used to specify that the file is to be opened in either read-only or read-write mode. The default is read-only mode.

The mode option is only applicable in CFPOST versions 4.1 and later. Earlier versions automatically open the file in read-write mode, and a file read error will occur if the mode option is used.

Examples

   grid test.cgd
   grid /usr/joe/abc.cgd

solution - Specify the name of the solution (.cfl) file

solution file [mode {read_only|read_write}]

	file		The name of the file to be used for retrieving solution data during subsequent processing. Geometry data will also be retrieved from this file if a `grid` command has not been specified.

The mode option may be used to specify that the file is to be opened in either read-only or read-write mode. The default is read-only mode. Certain CFPOST commands (e.g., calculate), require that the solution file be opened in read-write mode.

The mode option is only applicable in CFPOST versions 4.1 and later. Earlier versions automatically open the file in read-write mode, and a file read error will occur if the mode option is used.

Examples

   solution test.cfl
   solution /usr/joe/abc.cfl

chemistry - Specify the name of the chemistry data (.chm) file

chemistry file file [itest number mode [number mode [...]]]

	file		The name of the file to be used for retrieving chemistry data during subsequent processing.

This file should be the same .chm file used during the flow solver run. It contains species data for thermodynamic properties, reaction rates, and transport properties, and is required if the solution (.cfl) file is from a Wind-US run with frozen or finite-rate chemistry.

The itest option may be used to specify chemistry-related TEST options that were used during the Wind-US run. Currently the only supported option number in CFPOST is 71, which controls how thermodynamic and transport properties are calculated when the temperature is outside the range of the curve fit equations. See the Test Options section in the Wind-US User's Guide for more details.

Examples

   chemistry file test.chm
   chemistry file /usr/joe/abc.chm

See Also: The show chemistry and clear chemistry commands for displaying the species information and clearing that data when no longer needed.

Last updated 22 Oct 2010