Ground-to-air flow visualization using Solar Calcium-K line Background-Oriented Schlieren
Ground-to-air flow visualization using Solar Calcium-K line Background-Oriented Schlieren
复制标题
使用太阳能钙 K 线背景导向纹影实现地对空气流可视化
作者：
Michael A. Hill;E. Haering
通过钙- k日食背景定向纹影实验，验证了以太阳盘为背景进行背景定向纹影（BOS）流动可视化方法的有效性。地基成像系统配备钙- k线光学标准子滤光片，以太阳色球层为不规则背景，用于BOS。一架美国空军T-38飞机进行了三次超音速飞行，从成像系统看，这使太阳黯然失色。使用光流方法成功地对图像进行了后处理，定性地揭示了飞机周围气流的密度梯度。
The Calcium-K Eclipse Background-Oriented Schlieren experiment was performed as a proof of concept test to evaluate the effectiveness of using the solar disk as a background to perform the Background-Oriented Schlieren (BOS) method of flow visualization. A ground-based imaging system was equipped with a Calcium-K line optical etalon filter to enable the use of the chromosphere of the sun as the irregular background to be used for BOS. A US Air Force T-38 aircraft performed three supersonic runs which eclipsed the sun as viewed from the imaging system. The images were successfully post-processed using optical flow methods to qualitatively reveal the density gradients in the flow around the aircraft.
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DOI：
10.1007/978-1-4939-7647-8_1
发表时间：
2018
期刊：
Neuromethods
影响因子：
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作者：
Joshi,AnandA
通讯作者：
Joshi,AnandA