本文選題：流場　切入點：Workbench仿真　出處：《液壓與氣動》2017年10期

【摘要】：針對某型號汽油機缸蓋的冷卻性能進行了流場仿真分析。基于現(xiàn)代反求技術獲得汽缸蓋精確的3D模型,通過布爾運算獲得內(nèi)部真實流道模型。使用ICEM對其進行網(wǎng)格劃分并設置恰當?shù)倪吔鐥l件,通過Fluent運算最終得到流道的速度流線場、換熱系數(shù)場和壓力分布場。對其進行分析可知該缸蓋整體冷卻性能正常,但4缸之間冷卻效果存在顯著差異。進行優(yōu)化分析后可知總體冷卻效果提升顯著,但對改善流道速度分布均勻性作用不大,并指出了局部流動死區(qū)。
[Abstract]:The flow field simulation analysis of the cooling performance of a certain type of gasoline engine cylinder head is carried out. Based on the modern reverse technique, the accurate 3D model of the cylinder head is obtained. The internal real flow channel model is obtained by Boolean operation. The ICEM is used to mesh it and set the appropriate boundary conditions. Finally, the velocity streamline field of the channel is obtained by Fluent operation. The heat transfer coefficient field and pressure distribution field show that the overall cooling performance of the cylinder head is normal, but there are significant differences between the four cylinders. But it has little effect on improving the uniformity of velocity distribution, and points out the dead zone of local flow.
【作者單位】： 四川理工學院機械工程學院;
【分類號】：TH137.51;TK413
，

本文編號：1684852