中南大学学报（自然科学版）2017，Vol.48Issue(8)：2224-2230,7.DOI:10.11817/j.issn.1672-7207.2017.08.033
结构参数对闭式内冷油腔填充率的影响
Effect of structural parameters on fill ratio of closed cooling gallery
摘要
Abstract
To study the influence of the structural parameters of the oil cooling gallery and the position change of the oil cooling gallery on the filling ratio,the control equation of two phase flow was solved by computational fluid dynamics (CFD),and the simulation results were validated against the special experiment results of the flow of the oil cooling gallery in the piston.The investigation shows that with the change of the cross-sectional area of the import and export of oil cooling gallery,the changes in the length of import and export oil hole,the nozzle flow rate,and the fill ratio of oil cooling gallery are different.The upward displacement of the oil cooling gallery position leads to the increase in the fill ratio and the decrease in the heat transfer of oil cooling gallery.The results also show that the fill ratio and the heat transfer coefficient of oil cooling gallery are influenced by the crank angles,and these two parameters have the same trend of change with the crank angle,and meanwhile,reach the maximum value in the maximum peak pressure condition.关键词
内冷油腔/两相流/填充率/传热系数Key words
cooling gallery/two phase flow/fill ratio/oil heat transfer分类
能源科技引用本文复制引用
邓立君,王志明,刘永启..结构参数对闭式内冷油腔填充率的影响[J].中南大学学报（自然科学版）,2017,48(8):2224-2230,7.基金项目
山东省自然科学基金资助项目(ZR2016EEB36)(Project(ZR2016EEB36) supported by the Natural Science Foundation of Shandong Province) （ZR2016EEB36）
