方管铝型材喷水冷却温度场模拟及影响因素分析

为了解决方管铝型材冷却不均的问题,利用有限元分析软件Fluent,对方管铝型材喷水冷却的温度场进行了三维瞬态数值模拟,分析了方管铝型材特征点的温度场变化规律,研究了挤出成形速度、喷嘴纵向间距及喷嘴横向间距对方管铝型材冷却温度场的影响.结果表明:挤出成形速度和喷嘴纵向间距对方管铝型材纵向温度场影响明显,而喷嘴横向间距对温度场的影响主要表现在横向上.采用最大的挤出成形速度、最小的喷嘴纵向间距和80mm的喷嘴横向间距可以得到较均匀的冷却温度场.

Simulation of temperature field and analysis of influencing factors for a square tube aluminum profile in spray cooling

In order to solve the issue of uneven cooling of square tube aluminum profiles,three-dimensional transient numerical simulation for the temperature field of a square tube aluminum profile in spray cooling was carried out by the finite element analysis software Fluent.The change in temperature field at characteristic points in the square tube aluminum profile was analyzed.The influence of extrusion velocity,nozzle vertical separation distance and nozzle horizontal separation distance on the temperature field was researched.The results show that extrusion velocity and nozzle vertical separation distance have a great influence on the temperature field in the vertical direction;and nozzle horizontal separation distance has a great influence on the temperature field in the horizontal direction.With the maximum extrusion speed,minimum nozzle vertical separation distance and a nozzle horizontal separation distance of 80 mm,the temperature field of spray cooling can be more uniform.