液体火箭发动机羽烟三维紫外辐射仿真研究  

Simulation of 3-D Ultraviolet Radiation from Liquid Rocket Engine Plume

作　　者：国爱燕[1] 唐义[1] 白廷柱[1] 黄刚[1] 

机构地区：[1]北京理工大学光电成像技术与系统教育部重点实验室,北京100081

出　　处：《北京理工大学学报》2012年第4期410-414,共5页Transactions of Beijing Institute of Technology

基　　金：国家“八六三”计划项目(2009AA01Z225);国家部委预研项目(110010202)

摘　　要：针对液体火箭发动机羽烟紫外辐射的空间分布问题,建立三维数值计算模型.该模型采用标准κ-ε湍流模型和PDF模型仿真羽烟流场的状态参数,根据HITRAN数据库计算流场内吸收系数分布,并利用离散坐标法求解辐射传输方程,计算三维空间的紫外辐射分布.测试结果表明:三维紫外辐射模型的计算结果与实验数据一致,能够反应不同视角下液体火箭发动机羽烟紫外辐射强度的空间变化.To analyze the spacial distribution of UV radiation from liquid rocket engine plume,a 3-D numerical model has been built.The standard κ-ε model and probability density function（PDF） model were adopted to compute the flow-field properties of the plume.Combined with HITRAN database,the distribution of absorption coefficient was calculated,and the radiation transfer equation could be solved by the discrete ordinate method.Test results show that the 3-D computation model can provide numerical data that agree well with measured experimental data.It also could reflect the spacial distribution of UV radiation from the hydrogen-oxygen rocket engine plume at different angles of view.

关 键 词：发动机羽烟 三维模型 紫外辐射 离散坐标法 

分 类 号：TN23[电子电信—物理电子学]