石英灯阵热流分布规律计算与试验研究  

Computational and Experimental Study on Quartz Lamp Array Heat Flux Distribution

作　　者：朱言旦 曾磊[2] 董威[3] 杜雁霞[2] 桂业伟[2] ZHU Yan-dan ZENG Lei DONG Wei DU Yan-xia GUI Ye-wei(State Key Laboratory of Aerodynamics, China Aerodynamies Research and Development Center, Mianyang 621000, China Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, China School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

机构地区：[1]中国空气动力研究与发展中心空气动力学国家重点实验室,绵阳621000 [2]中国空气动力研究与发展中心计算空气动力研究所,绵阳621000 [3]上海交通大学机械与动力工程学院,上海200240

出　　处：《宇航学报》2017年第10期1131-1138,共8页Journal of Astronautics

基　　金：国家自然科学基金(11472295)

摘　　要：为了掌握石英灯单灯及灯阵热流分布规律,提高石英灯阵热流分布预测能力,对石英灯阵热流分布进行了计算分析与试验研究,发展了基于蒙特卡罗方法的石英灯阵热流分布预测方法及计算程序;基于所建方法,分析了加载功率、高度等因素对石英灯及简单灯阵的热流分布的影响规律。结果表明,不同加载功率和高度条件下,本文程序计算结果与试验结果符合较好;高度一定时,石英灯及简单灯阵热流随着加载功率的增加基本上呈线性增加;加载功率一定时,随着灯阵高度的增加,辐射热流分布的均匀性呈增加趋势,中心区域均匀区面积呈先增大后减小的趋势。相关结果可为石英灯阵加热优化设计提供重要参考。The heat flux distribution of the single lamp and the lamp array are studied by using the experimental and numerical methods to obtain the rules of the heat flux distribution and improve the ability of predicting the quartz lamp array heat flux distribution. The method and program of the quartz lamp array heat flux distribution prediction are developed. The effects of the loading power and lamp array height on the heat flux distribution of the quartz lamp and simple lamp array are analyzed. The results show that the calculated results are in good agreement with the experimental results under different loading power and lamp array height conditions. When the lamp array height is constant,the heat flux of the quartz lamp and simple lamp array increases linearly with the increase of the load power. When the power is constant,the uniformity of the heat flux distribution trends is to be better and the central homogeneous area presents a trend with firstly increasing and then decreasing with the increase of the height of the lamp array. The results can provide an important reference for the optimization design of the quartz lamp arrays.

关 键 词：石英灯阵 热流分布 蒙特卡罗 热试验 飞行器 

分 类 号：V146.4[航空宇航科学与技术—人机与环境工程]