3维燃油喷雾碰壁数学模型  

3-D Numerical Model of Fuel Spray Wall Impingement

作　　者：贺萍[1] 刘永长[1] 宋军[1] 汪海清 

机构地区：[1]华中理工大学

出　　处：《内燃机学报》1996年第3期332-339,共8页Transactions of Csice

摘　　要：根据实际燃油喷雾碰壁的物理过程，基于单液滴碰壁后的性态特征，本文提出了在３维喷雾模拟框架下的一种新的喷雾碰壁数学模型，描述了碰壁液滴反弹、形成附壁射流、裂化以及油膜蒸发的现象。利用本文提出的数学模型对燃油垂直碰壁进行模拟计算，结果与高速阴影和纹影摄影图像比较吻合。According to experimental observations this paper Presents a new model of fuel spray impaction on walls that comes under the framework of 3iD models. It describes reflection, formationo f tangential jet, break-up of a impinging droplet and evaporation phenomena of wall fuel layer.Normal impingement of fuel is calculated by this model. The results are in good agreement withphotographs taken with the transmitted light and the scattered light through a narrow slit.

关 键 词：喷雾 碰壁 数学模型 燃料油 内燃机 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]