The modelling performance of a reaction mechanism can profoundly impact the overall results of a reactive Computational Fluid Dynamic (CFD) simulation. For many fuels, especially hydrogen and hydrocarbons,  several highly detailed reaction mechanisms can be found in the open literature. Most of these mechanisms however are too computationally expensive to be used in three dimensional reactive CFD simulations.

The research area of reaction mechanisms with a reduced size, i.e. with a reduced number of species and reactions compared to detailed mechanisms, specifically designed to be computationally cheap enough for CFD, is evolving quickly.

This website offers free download of detailed and reduced reaction mechanisms, targeted for use in CFD, which have all been published in the open literature. All mechanisms have been developed with the goal at combining a high modelling capacity together with a low computational cost. Each presented mechanism is accompanied by a short overall description, and reference(s) how to cite.

All reaction mechanisms are available for download in both Chemkin and Cantera (.yaml and .cti) formats.