摘要
介绍了适于发动机内腔气流流动、汽车内部通风换热及车外流场计算的有限体数值方法，通过其流行软件ＦＬＵＥＮＴ计算分析了燃油喷射汽油机气道内二相流流场。依据计算结果提出了改进燃油喷射的方案，并用实验证明了改进后的方案可提高试验样机的动力与经济性。
The numerical method called finit volume mthod is introduced in brief, which is useful to calculate the internal and external fluid field for engines and vehicles. The Two phase flows in the inlet manifold of a fuel injection S. I. engine are simulated by use of FLUENT. According to the analysis, an improvement of the injection performance in a running engine has been achieved.
关键词
燃油喷射
二相流
计算
汽油机
流场
Fuel injection
Two phase flow
Numerical siimulation
S. I. engine
