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ITHACA-FV is an implementation in OpenFOAM of several reduced order modelling techniques. ITHACA-FV is designed for []
<a href="https://openfoam.org/version/6">OpenFOAM 6.0</a>.
(https://openfoam.org/version/6) and [OpenFOAM 5.0<\b>](https://openfoam.org/version/5-0) but it can be easily adapted also to other versions of OpenFOAM.
- ITHACA-FV** can also be used as a basis for more advanced projects that would like to assess the capability of reduced order models in their existing **OpenFOAM**-based software, thanks to the availability of several reduced order methods and algorithms.
Linear and non-linear algebra operations which are not already implemented in OpenFOAM are performed with the external library [**Eigen**](http://eigen.tuxfamily.org/index.php?title=Main_Page). The source code of Eigen 3.3.4 is provided together with ITHACA-FV and is located in the [src/thirdyparty/Eigen](./src/thirdparty/Eigen) folder. For the EigenValue decomposition it is also possible to rely on the [**Spectra-0.6.1**](https://spectralib.org/) library and the source code is provided in the [src/thirdyparty/spectra-0.6.1](./src//thirdparty/spectra-0.6.1) folder.
- ITHACA-FV** has been tested on ubuntu 16.04 but can be easily compiled on any linux distribution with a compiled version of OpenFOAM 6.0 or OpenFOAM 5.0.
- 1. Prerequisites
- ITHACA-FV** requires
- [**OpenFOAM 6.0**](https://openfoam.org/version/6) or
- [**OpenFOAM 5.0**](https://openfoam.org/version/5-0)