内燃机工程2018，Vol.39Issue(1)：42-48,7.DOI:10.13949/j.cnki.nrjgc.2018.01.007
发动机水套中沸腾传热的试验与仿真研究
Simulation and Experimental Study on Boiling Heat Transfer in Engine Water Jacket
摘要
Abstract
In order to accurately study the heat transfer problem of the coolant flow in the engine water jacket,a gas-liquid two-phase flow model suitable for the boiling heat transfer in the engine water jacket was established on the basis of the mixture multiphase flow model.The temperature of the fourth cylinder's fire surface was measured by a certain four cylinder gasoline engine,and the high accuracy of the two-phase flow simulation was verified compared with the traditional single-phase flow simulation.On this basis,the high temperature danger zone of the water jacket wall was found out,and the optimization scheme was proposed according to the design requirements of the engine water j acket.Results show that after optimization,the coolant flow and cooling are more uniform,the wall temperature of the water jacket is decreased and the heat transfer effect is also improved,which provides a reference for the future research on engine boiling heat transfer and the design of cooling water j acket.关键词
发动机水套/沸腾传热/两相流/模拟仿真/优化设计Key words
engine water j acket/boiling heat transfer/two-phase flow/simulation/optimization and design分类
能源科技引用本文复制引用
张俊红,赵永欢,徐喆轩,胡欢,王杰,马梁..发动机水套中沸腾传热的试验与仿真研究[J].内燃机工程,2018,39(1):42-48,7.基金项目
国家科技重大专项项目(2016YFD0700701)National Science and Technology Major Project of China(2016YFD0700701) （2016YFD0700701）
