---
name: "surfaceLambdaMuSmooth"
section: "1"
platform: "linux"
package: "openfoam"
version: "1912.200626-3+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/surfaceLambdaMuSmooth"
---

# surfaceLambdaMuSmooth(1)

part of OpenFOAM (The Open Source CFD Toolbox).

## NAME

surfaceLambdaMuSmooth - part of **OpenFOAM** (The Open Source CFD Toolbox).

## SYNOPSIS

**surfaceLambdaMuSmooth** \[*OPTIONS*\] *input* *lambda* *mu* *iterations* *output*

## DESCRIPTION

```
Smooth a surface using lambda/mu smoothing.
For laplacian smoothing, set lambda to the relaxation factor and mu to zero.
```

## ARGUMENTS

- *input*

  The input surface file

- *lambda*

  On the interval \[0,1\]

- *mu*

  On the interval \[0,1\]

- *iterations*

  The number of iterations to perform

- *output*

  The output surface file

## OPTIONS

- **-featureFile** *Fix points from a file containing feature points and edges*

  - **-doc**

  Display documentation in browser

- **-help**

  Display short help and exit

- **-help-full**

  Display full help and exit

### ADVANCED OPTIONS

- **-doc-source**

  Display source code in browser

- **-help-man**

  Display full help (manpage format) and exit

- **-help-notes**

  Display help notes (description) and exit

## SEE ALSO

Online documentation https://www.openfoam.com/documentation/

## COPYRIGHT

Copyright © 2018-2019 OpenCFD Ltd.