复杂热环境下高空气球升空热动力学特性  

Study on the influence of release conditions on the ascending process of high-altitude balloons

作　　者：程昊天 王梓皓 张泰华 杜千仟 曹胜鸿 CHENG Haotian;WANG Zihao;ZHANG Taihua;DU Qianqian;CAO Shenghong(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;University of Chinese Academy of Sciences,Beijing 100049,China;Qilu Aerospace Information Research Institute,Jinan 250100,China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院大学,北京100049 [3]齐鲁空天信息研究院,济南250100

出　　处：《兵器装备工程学报》2024年第11期170-180,共11页Journal of Ordnance Equipment Engineering

基　　金：中国科学院颠覆性项目(E1Z22001)。

摘　　要：结合现有高空气球升空过程研究基础,建立了高空气球热-动力学耦合模型,主要包括系统受力分析、动力学建模、搭建辐射换热以及对流换热模型,结合实际飞行试验数据,验证了所构建的热力学耦合模型。在此基础上,分析了发放日期、发放点纬度以及初始氦气温度对高空气球升空过程中气球升速、系统净浮力以及球体内部氦气温度等参数的影响规律。研究结果表明,选择合适的发放地点和日期能一定程度缓解升空过程超冷现象的影响,初始氦气温度主要对升空前期有一定影响。研究结果可为高空气球的研究提供了一定的理论指导,其不同因素的影响规律具有一定的工程实用价值。In this paper,based on the existing research foundation of high-altitude balloon lift-off process,a thermal-dynamic coupling model of high-altitude balloon is established,which mainly includes system force analysis,dynamic modeling,radiation heat transfer and convection heat transfer model.Combined with the actual flight test data,the coupling model is verified.On this basis,the influence of the release date,the latitude of the release point and the initial helium temperature on the parameters such as the balloon speed,the net buoyancy of the system and the helium temperature inside the sphere during the launch of the high-altitude balloon are analyzed.The results show that the selection of the appropriate release location and date can alleviate the influence of the supercooling phenomenon during the lift-off process to a certain extent,and the initial helium temperature mainly has a certain influence on the early lift-off stage.The research results can provide some theoretical guidance for the study of high-altitude balloons,and the influence law of different factors has certain engineering practical value.

关 键 词：高空气球 升空过程 热动力学 复杂热环境 飞行试验 

分 类 号：TK11[动力工程及工程热物理—热能工程]