基于Fluent汽油机缸盖冷却性能仿真分析

发布时间：2018-03-30 07:07

  本文选题：流场　切入点：Workbench仿真　出处：《液压与气动》2017年10期

【摘要】：针对某型号汽油机缸盖的冷却性能进行了流场仿真分析。基于现代反求技术获得汽缸盖精确的3D模型,通过布尔运算获得内部真实流道模型。使用ICEM对其进行网格划分并设置恰当的边界条件,通过Fluent运算最终得到流道的速度流线场、换热系数场和压力分布场。对其进行分析可知该缸盖整体冷却性能正常,但4缸之间冷却效果存在显著差异。进行优化分析后可知总体冷却效果提升显著,但对改善流道速度分布均匀性作用不大,并指出了局部流动死区。
[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.
【作者单位】： 四川理工学院机械工程学院;
【分类号】：TH137.51;TK413
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本文编号：1684852