706 Numerical Analysis of Mixture Formation Process in Premixed Compression Ignition Engines

Abstract

In order to numerically analyze hollow-cone sprays injected from a pintle nozzle using the authors' GTT code, the model coefficients for the droplet breakup model (improved wave breakup model) were determined appropriately. And then, the behavior of a hollow-cone spray in a premixed compression ignition engine was numerically simulated. Furthermore, a fuel spray which was injected downward from a single-hole nozzle and impinged on the central protrusion of the combustion chamber of an engine was numerically analyzed, and the mixture formation process was made clear.