进排气系统压力波模拟计算的发展

Development on the Wave Action Simulation of the Inlet and Exhaust Manifolds

综述了内燃机进排气系统压力波模拟计算的发展。简要介绍了容积法和特征线法，着重介绍了在一维解法中的最新技术：具有流修正迁移（FCT）的二步Lax－Wendroff法，认为它是继特征线法之后的又一个标准算法。该算法具有高精度，高速度等优良特性，将逐步取代特征线法。最后介绍多维模型及解法的最新发展。

This paper summarizes the technical development on the wave action simulation of the inlet and exhaust manifolds for internal combustion engines. A brief instruction is made for the filling and emptying method and the method of characteristics. Emphasis is put on the most advanced technique, the two step Law-Wendroff method with the flux-corrected transport. It is considered that it is another standard method after the method of characteristics. Owing to its higher accuracy, higher simulation speed and other better features, the two step Law-Wendroff method will gradually replace the method of characteristics. Finally, the latest development Of the multi -dimensions methods is also presented briefly.