水套式排气歧管流固耦合传热的研究  

Simulating Heat Transfer of Water-jacket Exhaust Manifold with Liquid-solid Coupling Method

作　　者：张翠平[1] 齐丽丽 齐东东 张忠国 李天鹏[1] 

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]山西天巨重工机械有限公司,晋城048000 [3]国投晋城能源投资有限公司,晋城048026 [4]中国煤炭科工集团太原研究院,太原030006

出　　处：《机械科学与技术》2013年第12期1797-1801,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：2012年太原市大学生创新创业人才项目(120164048);山西省煤矿装备研究生教育创新中心科研项目(MKY2011-007)资助

摘　　要：以某型发动机水套式排气歧管为研究对象,运用三维建模软件UG,建立了水套式排气歧管的管壁、内部烟气和冷却水的几何模型并进行组装。利用GAMBIT软件划分网格,并应用FLUENT软件模拟排气歧管的流体流动和传热以及流体与排气歧管之间的耦合传热,得出内部流场和温度场分布状况。结果表明:水套式排气歧管表面温度不超过423 K,满足安全防爆的要求。This paper studies the water-jacket exhaust manifold on a certain engine. With the help of the 3 D modeling UG software, the 3D models of the wall, inner gas and inner cooling water of the water-jacket exhaust manifold are established separately; then, the 3D models are assembled. This paper also divides a mesh by using the GAM- BIT software and simulates the fluid flow, heat transfer and coupled manifold and its fluid by using the FLUENT software, thus obtaining heat transfer between the water-jacket exhaust the inner flow field distribution and the tem- perature field distribution. The simulation results show that the surface temperature of the water-jacket exhaust man- ifold does not reach 423 K. This meets the explosion-proof requirement.

关 键 词：水套式排气歧管 温度场 冷却水套 流固耦合 

分 类 号：TH183.1[机械工程—机械制造及自动化]