Abstract
A new facility to study high Reynolds number wall bounded turbulent flow has been designed. It will be installed in the laboratory of Center for International Collaboration on Long Pipe Experiments ”CICLoPE” in Predappio (Italy). The facility consists of a large pipe, allowing to reach high Reynolds numbers, where all turbulent scales can be resolved with standard measurement techniques. The pipe operates with air at ambient conditions with a maximum speed of 60 m/s in order to avoid any compressibility effect. In order to maintain stable conditions over long period of time the pipe is part of a close loop circuit. The pipe will be located in a tunnel 60 m underground, thus ensuring very low level of external perturbations. The layout resembles an ordinary wind tunnel where the main difference is the long test section, which produces most of the friction losses. This requires the use of a multiple stage axial fan driven by two independent motors. Even though many of the various aerodynamic components are similar to those ordinary used in wind tunnel (corners, diffusers, turbulence manipulators, contraction, etc.) they have been designed aiming at obtaining a very good quality of the flow and minimizing the overall pressure losses.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Marati, N., Casciola, C.M., Piva, R.: Energy cascade and spatial fluxes in wall turbulence. J. Fluid Mech. 521 (2004)
Talamelli, A., Persiani, F., Fransson, J.H.M., Alfredsson, P.H., Johansson, A.V., Nagib, H.M., Rüedi, J.-D., Sreenivasan, K.R., Monkewitz, P.A.: CICLoPE - a response to the need for high Reynolds number experiments. Fluid Dynamics Research (2007), doi:10.1088/0169-5983/41/2/021407
Shockling, M.A., Allen, J.J., Smits, A.J.: Roughness effects in turbulent pipe flow. J. Fluid Mech. 564, 267–285 (2006)
Lindgren, B., Johansson, A.V.: Evaluation of a new wind tunnel with expanding corners. Exp. Fluids 36, 197–203 (2004)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 Springer International Publishing Switzerland
About this paper
Cite this paper
Talamelli, A., Bellani, G., Rossetti, A. (2014). The “Long Pipe” in CICLoPE: A Design for Detailed Turbulence Measurements. In: Talamelli, A., Oberlack, M., Peinke, J. (eds) Progress in Turbulence V. Springer Proceedings in Physics, vol 149. Springer, Cham. https://doi.org/10.1007/978-3-319-01860-7_21
Download citation
DOI: https://doi.org/10.1007/978-3-319-01860-7_21
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-01859-1
Online ISBN: 978-3-319-01860-7
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)