基于CFD技术的发动机水套选型及优化设计

摘要

Water-jacket is an important part of engine cooling system,the well designed water-jacket can lead a good cooling liquid distri-bution and a uniform heat-exchange. Usually the designer have to select the best one from several layouts,so it is very important to know the flowing field in water-jacket. An example of using CFD technique to determine the layout of water-jacket and to optimize water-jacket in for-ward design of an engine was shown.%水套是发动机冷却系统的重要组成部分，良好的水套设计能够使得各缸冷却液分布合理，换热均匀。在水套设计过程中工程师常常面临多种水套方案的选型工作，因此明确各方案的流动特点是非常关键的工作。介绍了一起在发动机的正向开发中利用CFD手段确定水套流场及在此基础上进行水套优化选型的实例。