Investigation of circular cylinder flow in water using Temperature-Sensitive Paint
- Publication Type
- Journal contribution (peer reviewed)
- Authors
- Fey, U.; Klein, C.; Möller, T. J.; Pöttner, J.; Radespiel, R.; Ondrus, V.; Beifuss, U.
- Year of publication
- 2013
- Published in
- Notes on Numerical Fluid Mechanics and Multisisciplinary Designs
- Band/Volume
- 121/
- DOI
- 10.1007/978-3-642-35680-3_78
- Page (from - to)
- 657-664
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.