Abstract
Among the many design goals of combustion engines, the mixing process of fuel and oxygen occupies an important place. If a good mixture can be achieved, the resulting combustion is both clean and efficient, with all the fuel burned and minimal exhaust remaining. For common types of engines, near-optimal flow patterns are actually known and include, among others, so-called swirl and tumble motions. With the general progress of state-of-the-art CFD simulations, the discipline of engine design is made accessible to both numerical simulation and visualization of the resulting datasets, allowing for rapid testing of engine designs. For a simulation, one of the most important things is to identify the boundary of the simulated system and choose the optimal model for the simulation.
Keywords: AVL FIRE Model, Engine Process Simulation, Moving Mesh