Abstract
The wall shear stress is an important quantity in fluid mechanics and aerodynamics, especially when the fact that about 50% of an airplane’s drag is due to viscous forces is considered. The goal of this project was the development of a novel, spatial measurement technique that is able to provide qualitative visualizations as well as quantitative information about the wall shear distribution. Like other visualizing methods, this technique exploits that changes in the surface temperature distribution of a heated structure are dependent on the near wall flow. The two main components of this new technique are a heatable structure and an infrared camera system to non-intrusively measure the surface temperature distribution. For the shear stress quantification, a turbulent flow across a flat plate was investigated experimentally and numerically. Wall shear stress visualizations were carried out for the flow around a finite, wall mounted cylinder and the results were compared to oil flow visualizations and surface hot-wire measurements.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Nitsche, W., Haberland, C., Thuenker, R.: Comparative investigations on friction drag measuring techniques in experimental aerodynamics. In: Proc. of the 14th ICAS Congress, ICAS-2.4.1 (1984)
Naughton, J., Sheplak, M.: Modern developments in shear-stress measurement. Progress in Aerospace Sciences 38, 515–570 (2002)
Nitsche, W., Suttan, J., Haselbach, F., Sturzebecher, D.: Surface force measurements with high spatial and temporal resolution by means of liquid crystal foils, piezofoils and surface hot film arrays. In: Advanced Aerodynamic Measurement Technology, AGARD CP-601 (1997)
Reda, D.C., Wilder, M.C.: The shear-sensitive liquid crystal coating method: Visualization of continuous surface shear stress vector distributions. In: Advanced Measurement Techniques. VKI Lecture-Series, vol. 1 (2001)
Ireland, P.T., Jones, T.V.: Liquid crystal measurements of heat transfer and surface shear stress. Measurement Science and Technology 11, 969–986 (2000)
Fujisawa, N., Funatani, S., Kosaka, S.: Measurement of shear-stress distributions by liquid-crystal coating. In: Optical Technology and Image Processing for Fluids and Solids Diagnostics SPIE (2002)
Carlomagno, G.M., Cardone, G., Meola, A., Astarita, T.: Infrared thermography as a tool for thermal surface flow visualization. Journal of Visualization 1, 37–50 (1998)
Dariabeigi, K., Aldafer, D.W.: Aerodynamic applications of infrared thermography. In: Proceedings of Infrared Technology XV (1989)
LeSant, Y., Marchano, M., Millan, P., Fontaine, J.: An overview of infrared thermography techniques used in large wind tunnels. Aerospace Science and Technology 6, 355–366 (2002)
Mayer, R., Henkes, R.A.W.M., Van Ingen, J.L.: Quantitative infrared-thermography for wall-shear stress measurement in laminar flow. International Journal of Heat and Mass Transfer 41, 2347–2360 (1997)
Roh, S.C., Park, S.O.: Vortical flow over the free end surface of a finite circular cylinder mounted on a flat plate. Experiments in Fluids 34, 63–67 (2003)
Pattenden, R.J., Turnock, S.R., Zhang, X.: Measurements of the flow over a low-aspect-ratio cylinder mounted on a ground plane. Experiments in Fluids 39, 10–21 (2005)
Dobriloff, C., Nitsche, W.: Surface pressure and wall shear stress measurements on a wall mounted cylinder. In: Nitsche, W., Dobriloff, C. (eds.) Imaging Measurement Methods for Flow Analysis. Springer, Berlin (2009)
Reyer, M., Rudolph, I., Nitsche, W.: Investigations into the visualization and quantification of wall shear stress distributions using infrared thermography. In: Proc. of the 25th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, AIAA-2006-3840 (2006)
Rudolph, I., Reyer, M., Nitsche, W.: Investigations into the visualization of wall shear stress distributions using infrared thermography and analysis of the transient data. In: Proc. of the 45th AIAA Aerospace Sciences Meeting and Exhibit, AIAA-2007-375 (2007)
Rudolph, I., Reyer, M., Nitsche, W.: Visualization of time-dependent wall shear stress distributions using infrared thermography. In: Proc. of the 12th International Symposium on Flow Visualization, ISFV12-30.3 (2006)
Rudolph, I., Reyer, M., Nitsche, W.: Infrared based visualization of wall shear stress distributions with a high temporal and spatial resolution. Journal of Visualization 10, 8 (2007)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Rudolph, I., Reyer, M., Nitsche, W. (2009). Infrared-Based Visualization of Wall Shear Stress Distributions. In: Nitsche, W., Dobriloff, C. (eds) Imaging Measurement Methods for Flow Analysis. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 106. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01106-1_24
Download citation
DOI: https://doi.org/10.1007/978-3-642-01106-1_24
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-01105-4
Online ISBN: 978-3-642-01106-1
eBook Packages: EngineeringEngineering (R0)