Abstract
The present work aims at investigating the very large-scale structures of turbulent pipe flow in CICLoPE at high Reynolds numbers. According to recent studies, some open questions remain to be answered to identify accurate sizes of these turbulent structures in pipe flow. The CICLoPE facility has been therefore utilized, providing an opportunity to approach high Reynolds number flows with high enough resolution in terms of the viscous length scale, allowing us to investigate the behavior of such turbulent structures. Meandering structures, usually referred as VLSM (very large-scale motions), have been identified with claimed extension up to 20R, where R is the pipe radius.
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Acknowledgements
This work was supported under EuHIT (European High-Performance Infrastructures in Turbulence) grant with the title “Spectral scaling of turbulence in CICLoPE at high Reynolds numbers”. The authors at Brandenburg University of Technology are supported by the DFG-German Research Foundation as a part of the FOR1182 and SPP1881 (grant nr.: EG100/24-1) project.
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Öngüner, E. et al. (2017). Wavenumber Dependence of Very Large-Scale Motions in CICLoPE at \(4800 \le \mathrm{Re}_{\tau } \le 37{,}000\) . In: Örlü, R., Talamelli, A., Oberlack, M., Peinke, J. (eds) Progress in Turbulence VII. Springer Proceedings in Physics, vol 196. Springer, Cham. https://doi.org/10.1007/978-3-319-57934-4_15
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DOI: https://doi.org/10.1007/978-3-319-57934-4_15
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