含静态混合元件乙烯裂解炉管内流场的数值模拟  

Numerical simulation of flow field in tubes of ethylene cracking furnace with static mixer units

作　　者：翟俊霞[1] 涂善东[2] 李大骥[3] 

机构地区：[1]南京工程学院动力工程系 [2]南京工业大学高温装备研究所,江苏南京210009 [3]东南大学动力工程系,江苏南京210096

出　　处：《兰州理工大学学报》2004年第5期55-58,共4页Journal of Lanzhou University of Technology

基　　金：江苏省教育厅自然科学研究计划资助(03KJB130 036)

摘　　要：采用计算流体动力学(computationalfluiddynamics,CFD)的方法,计算了含静态混合元件炉管内的流场.数值模拟结果表明,采用静态混合元件的乙烯炉管中流体的混合被强化,从而强化了传热.根据其数值模拟的速度场,提出了一种基于速度分析的CFD结果评价方法,定性和近似定量地演绎了工程测试的数据,使计算模型和数值模拟结果在实验中得到了验证.该方法可望在同类流体的研究中推广应用.　Computational fluid dynamics(CFD) is employed to simulate the flow field in tubes of ethylene cracking furnace with static mixer units.Results suggest that mixing of fluid in such tubes is strengthened by the static mixer units.Thus the heat transfer is enhanced.According to the numerically simulated flow field,a method for assessing the CFD results is present by using the velocity analysis,which can be a clue to demonstrate the qualitatively and quasi-quantitatively tested data of engineering cases.Experimental results are discussed as a comparison.The computational model and results of numeric simulation are proved to be valid by the experiment.Method presented will find further usage in other systems with fluids in the tubes.

关 键 词：乙烯裂解炉管 计算流体动力学(CFD) 数值模拟 静态混合元件 

分 类 号：TK124[动力工程及工程热物理—工程热物理]