---
name: "freefoam-changeDictionary"
section: "1"
platform: "linux"
package: "freefoam"
version: "0.1.0+dfsg+1-3"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/freefoam-changeDictionary"
---

# freefoam-changeDictionary(1)

Utility to change dictionary entries.

## NAME

freefoam-changeDictionary - Utility to change dictionary entries.

## SYNOPSIS

**freefoam changeDictionary** \[-region *\<name\>*\] \[-help\] \[-srcDoc\] \[-doc\] \[-parallel\] \[-literalRE\] \[-case *\<dir\>*\]

## DESCRIPTION

Reads dictionaries (fields) and entries to change from a dictionary. E.g. to make the *movingWall* a *fixedValue* for *p* but all other *Walls* a zeroGradient boundary condition, the system/changeDictionaryDict would contain the following:

```
dictionaryReplacement
{
    p                           // field to change
    {
        boundaryField
        {
            ".*Wall"            // entry to change
            {
                type            zeroGradient;
            }
            movingWall          // entry to change
            {
                type            fixedValue;
                value           uniform 123.45;
            }
        }
    }
}
```

## OPTIONS

- **-literalRE**

  Do not interpret regular expressions; treat them as any other keyword.

- **-region** *\<name\>*

  Only apply to named mesh region.

- **-case** *\<dir\>*

  Case directory.

- **-parallel**

  Run in parallel.

- **-help**

  Display help message.

- **-doc**

  Display Doxygen API documentation page for this application.

- **-srcDoc**

  Display Doxygen source documentation page for this application.

## SEE ALSO

An overview of FreeFOAM is given in [**freefoam**(1)](/freefoam/1.md).

## AUTHOR

OpenCFD Ltd.

## FREEFOAM

Part of the [**freefoam**(1)](/freefoam/1.md) suite.

## COPYRIGHT

• Copyright © 2008-2012 Michael Wild.

• Copyright © 1991-2010 OpenCFD Ltd.