VOF Simulation of The Cavitating Flow in High Pressure GDI Injectors

Filippo Giussani, Andrea Montorfano, Federico Piscaglia, A. Onorati, Jerome Helie
2017 Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems   unpublished
The paper describes the development in the OpenFOAM® technology of a dynamic multiphase Volume-of-Fluid (VoF) solver, supporting mesh handling with topological changes, that has been used for the study of the physics of the primary jet breakup and of the flow disturbance induced by the nozzle geometry during the injector opening event in high-pressure Gasoline Direct Injection (GDI) engines. Turbulence modeling based on a scale-resolving approach has been applied, while phase change of fuel is
more » ... change of fuel is accounted by means of a cavitation model that has been coupled with the VOF solver. Simulations have been carried out on a 6-hole prototype injector, especially developed for investigations in the framework of the collaborative project FUI MAGIE and provided by Continental Automotive SAS. Special attention has been paid to the domain decomposition strategy and to the code development of the solver, to ensure good load balancing and to minimize inter-processor communication, to achieve good performanceand also high scalability on large computing clusters.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4989
doi:10.4995/ilass2017.2017.4989 fatcat:4sbzjshemzar5ncyjoy45k5ji4