激波风洞TSP膜基结构表面温升特性研究
Research on Surface Temperature Rise Characteristics of TSP Film-based Structure in Shock Tunnel
张雁恒 1庄宇 1支冬 1胡守超 1江涛1
作者信息
- 1. 中国空气动力研究与发展中心超高速空气动力研究所,绵阳 621000;飞行器流体物理全国重点实验室,绵阳 621000
- 折叠
摘要
针对激波风洞温敏漆(TSP)膜基结构横向传热效应,以及表面温升特性长期困扰大面积测热试验设计的工程问题,首先基于瞬态传热数理模型分别开展模型材质、热流密度、TSP层厚及流场作用时间对膜基结构横向传热效应和表面温升特性影响规律的仿真分析,并给出了一维传热假设成立的前提条件.然后利用Φ0.6m激波风洞开展典型工况下不同材质平板舵模型的表面温升测量试验,并对数值仿真结果的可靠性进行对比验证,最终获得膜基结构表面温升特性的主要影响规律.结果可为激波风洞测热试验如何兼顾TSP喷涂厚度、模型选材与测温范围提供理论支撑,指导膜基结构材料与厚度的工程设计.
Abstract
Aiming at the problem that the heat test engineering design has been long puzzled by transverse heat transfer effect and surface temperature rise characteristic of temperature sensitive paint(TSP)film-based structure,firstly,the influence of model material,surface heat flux,TSP layer thickness and running time on the transverse heat transfer effect and surface temperature rise characteristic of TSP film-based structure are simulated and analyzed based on the transient heat transfer mathematical model,and the precondition of one-dimensional heat transfer hypothesis is given.Secondly,the surface temperature rise of different plate rudder models is measured under typical conditions through Φ0.6 m shock wind tunnel,and the reliability of numerical simulation results is compared and verified.Finally,the main influence laws of surface temperature rise characteristic of TSP film-based structure are obtained.The results can provide theoretical support for how to give consideration to TSP spraying thickness,model material selection and temperature measurement range for heat flux testing in shock wind tunnel,and guide the engineering design for material and thickness of film-based structure.
关键词
激波风洞/温敏漆(TSP)/膜基结构/横向传热/表面温升Key words
Shock tunnel/Temperature sensitive paint(TSP)/Film-based structure/Transverse heat transfer/Surface temperature rise引用本文复制引用
出版年
2024
NETL
NSTL
万方数据