A new approach to CFD research: combining AVL´s FIRE code with user combustion model

A new oil-combustion model was implemented into the AVL´s CFD code FIRE and validation performed. The validation consisted of the simulation and the comparison with the existing Magnussen model. For the simulation purpose the domain was determined first, while user-defined functions simulating conditions at the inlet were done subsequently. The comparisons with the Magnussen results as with some approximate experimental results were done at the end. The paper shows flexibility of AVL´s code in usage of user-defined functions, which enables combining the advantages of a commercial code and user modelling.