Investigation of Circular Cylinder Flow in Water Using Temperature-Sensitive Paint
Investigation of Circular Cylinder Flow in Water Using Temperature-Sensitive Paint
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使用温敏涂料研究水中的圆柱流
DOI：
10.1007/978-3-642-35680-3_78
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
U. Beifuss
中科院分区：
文献类型：
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作者：
U. Fey;C. Klein;T. Möller;Jost Philip Pöttner;R. Radespiel;V. Ondruš;U. Beifuss
本文应用温度敏感漆（TSP）方法，对水中浸没物体表面非定常流场进行了可视化研究。开发了一种在10 °C <T< 40 °C范围内具有高温度灵敏度的“waterTSP”。实验在循环水洞中进行，试验体为圆柱体。研究的雷诺数范围为3500 <Re< 14500。结果表明，在流动条件下，水TSP能够在模型表面显示非稳态热流。例如，可以识别分离线的足迹和运动。无量纲频率的旋涡脱落（Strouhal数，Sr）测量从waterTSP图像和湍流近壁结构的动态可视化。
In the present investigation the method of Temperature-Sensitive Paint (TSP) is applied to visualize the unsteady pattern of surface flow on an immersed body in water. A ‘waterTSP’ has been developed with high temperature sensitivity in the range 10 °C <T< 40 °C. Experiments were conducted in a recirculating water tunnel where a circular cylinder was used as the test body. The range of the Reynolds number investigated is 3500 <Re< 14500. It is demonstrated that waterTSP is capable of showing unsteady heat flux on the model surface under flow conditions. For example, the footprint and the motion of the separation line can be identified. The dimensionless frequency of vortex shedding (Strouhal number,Sr) is measured from waterTSP images and the dynamics of turbulent near-wall structures are visualized.