Weighted essentially non-oscillatory library for the framework of OpenFOAM. Detailed information about the theoretical background and the implementation can be found in:

• Development of a Finite Volume Solver for Two-phase Incompressible Flows using a Level Set Method
• Solving the Level Set Equation using High-order Non-oscillatory Reconstruction
• Presentation: WENOExt

Versions:

Different versions of the code are structured through tags:

• [1.0] Version for OpenFOAM 5.x, 6 and 7. Uses improved parallising and C++11 features
• [0.1] Version for OpenFOAM 2.3.x to OpenFOAM 5.x

• Tobias Martin [email protected]
• Jan Wilhelm Gärtner [email protected]

1. Clone the directory with git clone https://github.com/WENO-OF/WENOEXT.git

2. Execute Allwmake to build the library

GNU compiler version must be higher than 7. For g++ < v7 an error is reported for the specialisation template syntax. The syntax in the code is according to C++11 standard which is available for g++ v7 and higher.

To use the WENO scheme you have to add the library to your controlDict by editing system/controlDict

libs("libWENOEXT.so")

Within your system/fvSchemes file,

divSchemes
{
	div(phi,U) 	Gauss WENOUpwindFit 2 1;
}

Here the first index '2' represents the order of the WENO scheme and the second index can be either '1' for bounded or '0' for unbounded.

The code contains two tutorials from the standard cavity test. To run the tutorials execute ./Allrun in the tutorial/ directory.

For some general functions of the solver a unit test file is created, however testing is still incomplete.

Testing is performed with the CATCH2 framework. You can compile and execute the tests by executing ./runTest in the test directory. Further instructions are found in here