For the latest version of our Windows patch for OpenFOAM visit "OpenFOAM 2.1.x on Windows 64-bit with MS MPI".

We have updated our Windows patch for OpenFOAM to match the latest OpenFOAM release (v1.6.x). Be warned - to build OpenFOAM for Windows with a cross compiler requires expert knowledge of Linux utilities and compilers.

Are you looking for a GUI driven, integrated simulation environment for Windows and Linux incorporating a selection of the RANS OpenFOAM solvers and various import/export filters? Then try our Caedium RANS Flow add-on.

Binary Version

A set of OpenFOAM binary applications are available for purchase at "OpenFlow: OpenFOAM for Windows."

Patch Build Process

The following steps are required to produce a native Windows version of OpenFOAM 1.6.x using a cross compiler:

1. Configure, build, install and test a MinGW cross compiler for Windows running on Linux. I used the build-mingw.sh script.
2. Add #include_next <float.h> to the end of
   lib/gcc/mingw32/4.4.1/include/float.h and remove it from
   mingw32/include/float.h to include the right float.h.
3. Install the OpenFOAM 1.6.x source distribution on Linux - git Commit: 50d2858505ca00e44776ce89cab97f9a33f098e8 Date: Dec 2 15:26:12 2009.
4. Patch (using the Linux patch command) the OpenFOAM 1.6.x source distribution with our MinGW Windows modifications [last updated March 5, 2010 to v10].
5. Copy wmkdep and dirToString from wmake/bin/linuxGcc to wmake/bin/linuxmingw32.
6. Export environment variables and source etc/bashrc. As an example:
   export FOAM_INST_DIR="$HOME/projects/of/of1.6"
export WM_ARCH_OPTION=32
export WM_OSTYPE=MSwindows
export WM_COMPILER=mingw32
export WM_CC=mingw32-gcc
export WM_CXX=mingw32-g++
export compilerInstall=System
export WM_MPLIB=NONE
source "$FOAM_INST_DIR/OpenFOAM-1.6.x/etc/bashrc"
7. Build using Allwmake in the OpenFOAM-1.6.x directory on Linux.
8. Transfer the OpenFOAM executables (applications/bin/linuxmingw32*/*.exe) and libraries (lib/linuxmingw32*/*.dll) to the Windows computer.
9. Launch a Windows command prompt to run OpenFOAM solvers and utilities, such as simpleFoam.exe.

On the Windows computer ensure the following:

• The WM_PROJECT_DIR and USERNAME variables are set.
• The etc directory from the original source distribution is within the WM_PROJECT_DIR.
• The PATH variable is set to include the OpenFOAM executable and library locations.

Constraints

With this method of building OpenFOAM for Windows the following features (there maybe more) are unavailable:

• job control scripts in bin (such as foamSolverSweeps)
• parallel

The following applications and libraries are unlikely to build:

• libccmio
• Scotch, metis, MPI and any dependents