ガンリン噴霧における壁面衝突燃料の挙動解析

抄録

In the case of gasoline engines, the fuel injected into the intake port adheres surely on its wall and the inlet valve, consequently, the wall impinging spray interaction should occur the generation of unburned hydrocarbons and uncontrol-lable mixture formation. Therefore, it is very important to analyze the fuel behavior during the spray-wall interaction. In this study, the submodel concerning the spray impingement is constructed in order to simulate the fuel behavior for gasoline spray inside intake manifold. In this submodel, fuel film formation process, film transportation process, droplet interaction film breakup process, and velocity and direction of dispersing droplets were considered based on several experimental results and was incorporated into KIVA-II code. As a results, it was possible to calculate results of impinging spray behavior.