黄海波，王宏大，李娟   

     摘要：本文主要介绍了应用CFD技术对某发动机水套的整改设计方案的模拟计算，分析整改方案对水套换热能力的影响，确认整改方案的可行性。通过分析认为：本次缸盖局部区域的整改，不会对水套整体换热性能引起负面的影响，水套的换热能力能够满足发动机运行需求。

    关键词：冷却水套、换热、压力损失

    Abstract: The paper introduces the simulation calculation to the correction plan for the engine water jacket with CFD, analyzes the influences that the plan has on heat transferring capability on the water jacket and identifies the feasibility of the plan. According to the analysis, the thermal transferring capability does not been influenced by this partial correction to the cylinder head, meeting the demand that the engine needs during operating. 

    Key word: Cooling Water Jacket; Heat Transfer; Pressure Loss