缸内燃烧过程模拟在GDI发动机设计中的应用

Application of In-cylinder Combustion Simulation in GDI Engine Design

利用AVL-Fire软件对开发中的某GDI发动机缸内的流动、喷雾、点火燃烧等过程进行了模拟分析。对缸内滚流、雾化效果等进行了评估,并就气道设计,喷油器选择以及正时调整等方面给出了工程优化建议。

AVL-Fire soft was used to simulate the flow, injection, combustion process of a GDI engine that is in development. Evaluation of in-cylinder tumble and spray were done, some advise was given for port design, injector choosing and timing optimization.