摘要
对曲轴箱通风系统内部流场进行了仿真分析,计算了稳态和瞬态情况下曲轴箱内部的速度场分布、功率损失、各油气通道流量分配关系,明确了稳态分析和瞬态分析的适用范围。通过仿真分析,可以知晓曲轴箱通风系统内部的气体流动规律,确定和量化发动机的泵气损失,加深对曲轴箱通风系统内部复杂现象的理解,为发动机的优化设计提供支持。
The internal flow field of the crankcase ventilation system is simulated and analyzed in this paper. The velocity field distribution, power loss and the flow distribution of each oil and gas channel are calculated in the case of steady state and transient state, and cleared the scope of the steady and transient analysis. Through the simulation, we can know the pattern of gas flow, identify and quantify the pumping losses of engine, deepen the comprehension for the complex pattern of the crankcase breathing system, and provide support for optimization design of engine.
出处
《内燃机》
2016年第3期29-32,共4页
Internal Combustion Engines
