Abstract

We are interested in the study of turbulent and instationary flow inside a cylinder of an alternative engine. The finite element method is used to solve equations model. As the domain of the flow is changing with time due to the moving piston, an arbitrary Lagrange eulerian technique is chosen to reply to this problem. The modelisation is based on classic k- ε model. In this paper, we will present instantaneous velocity, streamlines and temperature maps obtained at various crank angles. We validate our results with other numerical predictions.

Key words: Aerodynamic, turbulence, simulation, finite elements, arbitrary Lagrangian Eulerian, alternative engine.