Taking the change of the water-jacket of a diesel engine cylinder head as the research object, the CFD simulation was carried out on the water-jacket of the cylinder head before and after adjustment. Based on the flow velocity distribution cloud diagram of the cylinder head lower water chamber and the water chamber of the exhaust channel,and combined with the flow distribution of upper water hole and connecting hole,the detailed reasons for the flow process and the weakening of the cooling capacity after adjustment were analyzed. On this basis,by adjusting the diameter and position of the connecting drillings,an optimization scheme that meets the requirements of cooling capacity was proposed,and the optimization scheme was simulated and verified.
关键词
缸盖水腔/CFD/钻孔/结构优化
Key words
cylinder head water-jacket/CFD/drilling/structure optimization
维普
万方数据