基于热-流-固耦合方法火焰筒壁温三维数值模拟  

Numerical simulation of three dimensional wall temperature of combustor liner based on thermal-fluid-solid coupling method

作　　者：高金海[1] 王建军[1] 马艳红[1] 洪杰[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《北京航空航天大学学报》2011年第3期300-304,共5页Journal of Beijing University of Aeronautics and Astronautics

基　　金：教育部新世纪优秀人才支持计划(NCET-06-0171)

摘　　要：准确地确定火焰筒壁温分布是对其进行热结构分析的前提和基础.基于ANSYS/CFX程序平台,采用基于燃烧模型的热-流-固耦合有限元方法,对某环形回流燃烧室的整个流场、温度场进行数值模拟,得出火焰筒壁温三维温度场分布.计算中考虑了燃烧热源和热辐射,燃烧和流场变化对换热的影响,以及燃气、煤油和固体物性参数随温度的变化.数值模拟结果表明,将流场和固壁进行耦合求解,能更精确反映流场和温度场的整个形态,可以模拟出较为合理的流场和温度场分布以及相应的流动换热特性.所做工作对火焰筒结构设计具有重要的工程应用价值.It is the premise and basis of thermal structure analysis to determine the temperature distribution of combustor liner.The three dimensional temperature distribution of a combustor liner was captured by the numerical simulation of an annular return-flow combustion chamber with ANSYS/CFX based on the thermal-fluid-solid coupling finite element method（FEM）.The calculation analyzes the effect of heat source and heat radiation,the influence of variable flow field on heat exchange parameter,and the change of the parameters of gas,kerosene,solid with temperature were taken into account.The numerical simulation results demonstrate that the interaction between the flow field and solid wall is more sufficient comparing with traditional methods.The complete feature of flow field and temperature field could be reflected,and the distribution of flow field and temperature field and corresponding flow and heat transfer characteristics could be simulated reasonably.The work is significant on the application of structure design of combustor liner.

关 键 词：火焰筒壁温 热-流-固耦合 燃烧模型 数值模拟 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]