Abstract
Force and pressure measurements were performed in a high Reynolds number facility, i.e. the Cryogenic Ludwieg-Tube (KRG). The balance based on multicomponent piezoelectric force transducers was applied totally in the cryogenic environment. The behaviour of the balance was tested ranging from ambient down to cryogenic conditions. As test cases, the flow around a circular cylinder was investigated at a sub- and supercritical Mach number. The highest possible Reynolds number in most nearly incompressible flow (Re = 5.8 × 106) was achieved at the temperature of T = −150°C, the highest pressure possible, p 0 = 10 bar, and the lowest attainable Mach number of Ma = 0.28. The results show that, in spite of the pulse operating mode of the tunnel, the steady and unsteady processes can be measured very well by means of a piezoelectric balance.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Gautschi G (2002) Piezoelectric sensorics. Springer, Berlin
Ludwieg H (1955) Der Rohrwindkanal, ZFW 3, p 206
Rosemann H (1997) The Cryogenic Ludwieg-Tube-Tunnel at Göttingen. AGARD Special Course in Cryogenic wind tunnel technology, Cologne
Schewe G (1982) A multicomponent balance consisting of piezoelectric force transducers for a high-pressure windtunnel. (1) Sensors Systems 82, vol 2, 1982, Pasadena, USA, (2) German Version: Techn. Messen 12 (1982)
Schewe G (1983) On the force fluctuations acting on a circular cylinder in crossflow from subcritical to transcritical Reynolds numbers. J Fluid Mech 133:265
Schewe G (1985) Force measurements in aerodynamics using piezo-electric multicomponent force transducers. In: Proceedings of 11th ICIASF ‘85 Record (International Congress on Instrumentation in Aerospace Simulation Facilities), Stanford University, August, p 263
Schewe G (1989) Nonlinear flow-induced resonances of an H-shaped section. J Fluids Struct 3:327–348
Schewe G (1990) Beispiele für Kraftmessungen im Windkanal mit piezoelektrischen Mehrkomponentenmeßelementen. ZFW 14 (1990), p 32
Schewe G (1991) Force measurements in aeroelasticity using piezoelectric multicomponent transducers. Int. Forum on Aeroelasticity and Structural Dynamics 1991, June 3–6, Aachen. DGLR-Bericht 91-06
Schewe G (2001) Reynolds-number effects in flow around more-or-less bluff bodies. J Wind Eng Ind Aerodyn 89:1267–1289
Schewe G, Mai H, Dietz G (2003) Nonlinear effects in transonic flutter with emphasis on manifestations of limit cycle oscillations. J Fluids Struct 18:3
Steinhoff Chr (1999) Experimente zu Mach- und Reynoldszahleffekten bei der Umströmung eines Kreiszylinders unter kryogenen Bedingungen. Dissertation Universität Göttingen und DLR-Forschungsbericht 99-02
Tichy J, Gautschi G (1980) Piezoelektrische Messtechnik. Springer, Berlin
Acknowledgment
The authors would like to thank Dres. H. Rosemannn, S. Koch and B. R. Noack for many helpful discussions, suggestions and their continuous support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Schewe, G., Steinhoff, C. Force measurements on a circular cylinder in a Cryogenic Ludwieg-Tube using piezoelectric transducers. Exp Fluids 42, 489–494 (2007). https://doi.org/10.1007/s00348-007-0250-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00348-007-0250-1