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本文研制了一种利用一个与电弧加热的超音速气流成小攻角放置的平板样品的新方法。这种方法能克服采用导管方法的不足,它观测到的烧蚀速度是比较均匀的,且能方便地测量表面温度和表面辐射热流。文中还叙述了实验原理、实验设备结构、参数测量和计算方法。研究是在测量的弧室压力从10.2到17.3公斤/厘米~2和总焓从520到2440大卡/公斤下完成的,报告里给出了五个湍流状态下泰氟隆模型的烧蚀实验结果。
This paper developed a new method of using a plate sample placed at a small angle of attack with an arc-heated supersonic gas stream. This method overcomes the shortcomings of using a catheter approach. The observed ablation rate is relatively uniform and the surface temperature and surface radiant heat flow can be conveniently measured. The article also describes the experimental principle, experimental equipment structure, parameter measurement and calculation methods. The study was performed at a measured arc chamber pressure of 10.2 to 17.3 kg / cm 2 and a total enthalpy of 520 to 2440 kcal / kg. The report shows five ablation experiments of the Teflon model in turbulent flow result.