电弧加热器湍流平板试验流场计算分析  

CFD analysis of the arc heater turbulent flow field of flat plate testing

作　　者：罗跃[1,2] 周玮[1] 杨鸿[1] 陈卫[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]四川大学制造科学与工程学院,成都610065

出　　处：《实验流体力学》2017年第2期86-92,共7页Journal of Experiments in Fluid Mechanics

摘　　要：近年来新发展的变迎角方法增加了电弧加热器湍流平板试验的可控参数,大幅提升了试验模拟能力,但同时也增加了状态调试的复杂性。本文基于FLUENT软件,采用CFD方法分析了不同试验工况下的流场特性。通过与典型试验状态的测试数据比较,验证了计算方法的有效性,定量地给出不同弧室压力和模型迎角条件下校测平板表面主要气动热参数分布,结合流场激波反射、干扰和附面层分离等现象,总结分析了试验控制参数的影响规律,并根据研究结果提出了试验的基本原则。The statement debugging is important but time consuming work in the arc-heated turbulent flat plate testing. Specially, with the development of the alerting angle method in re cent years, the debugging becomes more complex and further consuming in both time and cost. In order to guide the experiments, some CFD analyses of the flow characteristics under different testing conditions are completed with the FLUENT software. By comparing to the experimental measurements of a calibration-plate under some representative conditions, the numerical method is verified firstly. At the same time, the distributions of the primary aerothermal parameters over the plate surface are provided quantitatively under various attack angles and total pressures. Furthermore, by analyzing the shock wave reflection, interaction and boundary layer separation, the rules of the impact of the control parameters to the flow field and some basic principles in experiments are summarized.

关 键 词：电弧加热器 平板试验 流场特性 数值模拟 校测 

分 类 号：V211.744[航空宇航科学与技术—航空宇航推进理论与工程]