内燃机气道内三维气体流场的研究

Study of 3-D Gas Flow in Intake Duct of Internal Combustion Engine

用数值模拟方法研究内燃机内气体流动的全貌以探求合理组织气流的途径是当前国内外研究的重要课题.利用微机版本的SALE计算程序对内燃机气道内流动进行了全三维流动模拟计算,其结果展示了进气道的结构型线对流动的影响,为进气道的设计与改进提供了依据.

It is an important research program for studying gas flow in internal combustion engine by numerical simulation to find a reasonable way of arranging gas flow efficiently.The full threedimensional flow in the intake duct of internal combustion engine is calculated by means of ALE method.The results represent the influences of construction,geometric configuration,and size of the intake duct on the velocity and pressure distribution in the flow.The full threedimensional flow calculation can provide the reference for the construction and improvement.