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Advances in Infrared Imaging Analysis Techniques for AEDC PWT/VKF Wind Tunnel Applications

机译:AEDC PWT / VKF风洞应用的红外成像分析技术进展

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Infrared imaging is becoming more popular as a non-intrusive method for the characterization of aerothermal heating on wind tunnel models. Recently, implementation of a large-scale multi-camera IR imaging capability at Arnold Engineering Development Complex has provided the opportunity to advance IR imaging analysis techniques. Described here are recent improvements for the processing & analysis of IR imaging data of models tested at conditions from transonic to hypersonic. At transonic conditions, variations in surface temperature over wind tunnel models can be enhanced for visual inspection of surface flow phenomena. At hypersonic conditions, model surface temperature variations can be processed to estimate aerothermal heating and are compared to numerical simulation results. The overall impact and utility of IR imaging at AEDC to provide mission critical heating rates to aid design is shown.
机译:红外成像作为一种非侵入性方法正越来越受欢迎,用于表征风洞模型中的空气热。最近,在Arnold Engineering Development Complex实施的大规模多摄像机IR成像功能为改进IR成像分析技术提供了机会。这里描述的是在从跨音速到高音速的条件下测试的模型的红外成像数据的处理和分析的最新改进。在跨音速条件下,可以增强风洞模型表面温度的变化,以目视检查表面流动现象。在高超声速条件下,可以处理模型表面温度变化以估算空气热加热并将其与数值模拟结果进行比较。显示了在AEDC上进行IR成像以提供关键任务加热速率以帮助设计的总体影响和效用。

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