The interaction between the operating conditions of the engine, engine geometry configuration, engine performance, and engine emissions is studied through analyses of the flow field, direct injection spray morphology, and the instantaneous surface temperatures of engine components.
The flow fields of the engine in the vertical symmetry-plane, valve-plane, horizontal-plane, and the near-wall piston flow field yield valuable information about the cyclical engine operation. However, a continuous flow bench experiment with an outflow duct will allow a deeper analysis of the turbulent intake jet of the engine cylinder through the systematic control of variables in a simplified, yet robust experimental simulated engine operation.
Additionally, the interaction between the engine flows and the direct injection spray using an ECN standard Spray G injector (Fig. 2) is closely studied and compared with constant volume chamber (CVC) and numerical simulation data.