---
name: "freefoam-polyDualMesh"
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-polyDualMesh"
---

# freefoam-polyDualMesh(1)

Calculate the dual of a polyMesh. Adheres to all the feature and patch edges.

## NAME

freefoam-polyDualMesh - Calculate the dual of a polyMesh. Adheres to all the feature and patch edges.

## SYNOPSIS

**freefoam polyDualMesh** \[-doNotPreserveFaceZones\] \[-help\] \[-srcDoc\] \[-case *\<dir\>*\] \[-doc\] \[-overwrite\] \[-splitAllFaces\] \[-concaveMultiCells\]

## DESCRIPTION

Detects any boundary edge \> angle and creates multiple boundary faces for it. Normal behaviour is to have each point become a cell (1.5 behaviour)

## OPTIONS

- **-concaveMultiCells**

  Creates multiple cells for each point on a concave edge. Might limit the amount of distortion on some meshes.

- **-splitAllFaces**

  Normally only constructs a single face between two cells. This single face might be too distorted. splitAllFaces will create a single face for every original cell the face passes through. The mesh will thus have multiple faces inbetween two cells! (so is not strictly upper-triangular anymore - checkMesh will complain)

- **-doNotPreserveFaceZones**

  By default all faceZones are preserved by marking all faces, edges and points on them as features. The -doNotPreserveFaceZones disables this behaviour.

- **-overwrite**

  Overwrite existing data.

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

  Case directory.

- **-help**

  Display help message.

- **-doc**

  Display Doxygen API documentation page for this application.

- **-srcDoc**

  Display Doxygen source documentation page for this application.

## NOTE

This is just a driver for meshDualiser. Substitute your own simpleMarkFeatures to have different behaviour.

## 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.