Scaling of adverse-pressure-gradient turbulent boundary layers in near-equilibrium conditions
Vinuesa R, Bobke A, Orlu R, Schlatter P (2017)
Publication Type: Conference contribution
Publication year: 2017
Publisher: Springer Science and Business Media, LLC
Book Volume: 196
Pages Range: 73-78
Conference Proceedings Title: Springer Proceedings in Physics
Event location: Bertinoro, ITA
ISBN: 9783319579337
DOI: 10.1007/978-3-319-57934-4_11
Abstract
Well-resolved large-eddy simulations are used to study adverse-pressure-gradient (APG) turbulent boundary layers (TBLs) under near-equilibrium conditions. In particular, we focus on two near-equilibrium cases where the power-law freestream velocity distribution is adjusted in order to produce long regions with a constant value of the Clauser pressure-gradient parameter β. In the first case we obtain an APG TBL with a constant value of β ≃ 1 over 37 average boundary-layer thicknesses, and in the second one a constant value of β ≃ 2 for around 28 average boundary-layer thicknesses. The scaling law suggested by Kitsios et al. (Int J Heat Fluid Flow 61:117–128, 2016, [10]), proposing the edge velocity and the displacement thickness as scaling parameters, was tested on the two constant-pressure-gradient parameter cases. The mean velocity and Reynolds-stress profiles were found to be dependent on the downstream development, a conclusion in agreement with classical theory.
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APA:
Vinuesa, R., Bobke, A., Orlu, R., & Schlatter, P. (2017). Scaling of adverse-pressure-gradient turbulent boundary layers in near-equilibrium conditions. In Ramis Orlu, Alessandro Talamelli, Martin Oberlack, Joachim Peinke (Eds.), Springer Proceedings in Physics (pp. 73-78). Bertinoro, ITA: Springer Science and Business Media, LLC.
MLA:
Vinuesa, Ricardo, et al. "Scaling of adverse-pressure-gradient turbulent boundary layers in near-equilibrium conditions." Proceedings of the 7th iTi Conference on Turbulence, 2016, Bertinoro, ITA Ed. Ramis Orlu, Alessandro Talamelli, Martin Oberlack, Joachim Peinke, Springer Science and Business Media, LLC, 2017. 73-78.
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