---
name: "freefoam-applyBoundaryLayer"
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-applyBoundaryLayer"
---

# freefoam-applyBoundaryLayer(1)

Apply a simplified boundary-layer model to the velocity and turbulence fields based on the 1/7th power-law.

## NAME

freefoam-applyBoundaryLayer - Apply a simplified boundary-layer model to the velocity and turbulence fields based on the 1/7th power-law.

## SYNOPSIS

**freefoam applyBoundaryLayer** \[-ybl *\<scalar\>*\] \[-Cbl *\<scalar\>*\] \[-help\] \[-srcDoc\] \[-doc\] \[-writenut\] \[-parallel\] \[-case *\<dir\>*\]

## DESCRIPTION

The uniform boundary-layer thickness is either provided via the -ybl option or calculated as the average of the distance to the wall scaled with the thickness coefficient supplied via the option -Cbl. If both options are provided -ybl is used.

## OPTIONS

- **-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.

- **-writenut**

  Output turbulent viscosity.

- **-Cbl** *\<scalar\>*

  Coefficient for scaling of the average distance from the wall.

- **-ybl** *\<scalar\>*

  Specify the uniform boundary layer thickness.

## 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.