---
name: "freefoam-graphResUVWP"
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-graphResUVWP"
---

# freefoam-graphResUVWP(1)

Extract the residuals of 'U', 'V', 'W' and 'p' at each time step

## NAME

freefoam-graphResUVWP - Extract the residuals of 'U', 'V', 'W' and 'p' at each time step

## SYNOPSIS

**freefoam graphResUVWP** *\<logFile\>*

## DESCRIPTION

The utility extracts the residuals of the velocity components *U*, *V* and *W* and the pressure *p* at each time step and writes them to *residualUVWP.dat*. The file has the following format:

```
1 <resU1>
2 <resU2>
...
1 <resV1>
2 <resV2>
...
1 <resW1>
2 <resW2>
...
1 <resP1>
2 <resP2>
...
```

where *\<resUX\>*, *\<resVX\>*, *\<resWX\>* and *\<resPX\>* are the residuals for *U*, *V*, *W* and *p*, respectively, at a given time-step *X*.

## OPTIONS

*\<logFile\>*

A FreeFOAM log file (i.e. the screen-output created by a FreeFOAM solver)

## 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 © 1991-2010 OpenCFD Ltd.

• Copyright © 2008-2012 Michael Wild.