摘要
综合考虑燃烧室燃气侧及冷却水套侧共同传热的影响,在额定工况下对四缸增压柴油机缸套的传热过程进行模拟计算.通过对发动机缸内工作过程进行三维仿真分析,对冷却水套进行CFD模拟计算,得出燃气侧和水套侧温度和传热系数边界条件,并完成缸套的温度耦合有限元传热分析.研究结果表明:缸套上部出现温度峰值,最大值为472 K,与实验值有较好的吻合.
For a four-cylinder-turbocharged-diesel engine, the heat transfer process of the diesel engine cylinder liner is simulated under the rated condition, considering the influence of the heat transfer between the gas side and the cooling jacket side. The gas side and water side heat transfer coefficient and temperature boundary conditions are achieved by 3D of in-cylinder working process simulation and CFD simulation of cooling water jacket, finite element analysis completed for cylinder temperature eventually. The results show that the peak value of temperature locate in the upper part of the cylinder liner, the max temperature is 472 K which has a good agreement with the experimental values.
出处
《河北工业大学学报》
CAS
2017年第5期51-55,共5页
Journal of Hebei University of Technology
基金
河北省高等学校科学技术研究项目(QN2016041)
关键词
援柴油机
流-固耦合
CFD模拟
有限元
传热
diesel engine
fluid-solid coupling
CFD simulation
FEA
heat transfer
