Wall oscillation induced drag reduction of turbulent boundary layers

Skote M, Mishra M, Negi PS, Wu Y, Lee HM, Schlatter P (2016)

Publication Type: Conference contribution

Publication year: 2016

Publisher: Springer Science and Business Media, LLC

Book Volume: 165

Pages Range: 161-165

Conference Proceedings Title: Springer Proceedings in Physics

Event location: Warsaw, POL

ISBN: 9783319291291

DOI: 10.1007/978-3-319-29130-7_29

Abstract

Spanwise oscillation applied on the wall under a turbulent boundary layer flow is investigated using direct numerical simulation. The temporal wall-forcing produces considerable drag reduction over the region where oscillation occurs. The turbulence fluctuations downstream of the oscillations are presented for the first time. Simulations with identical oscillation parameters have been performed at different Reynolds numbers to investigate the effect on the drag reduction. One of the simulations replicates an earlier experiment to test the fidelity of the current simulations. In addition, we present the future work in this area with an integrated experimental and computational investigation to explore the possibility of applying travelling waves (oscillations in both time and space) as the mode of wall motion for active control of near-wall turbulence.

Authors with CRIS profile

Philipp Schlatter

Involved external institutions

Nanyang Technological University (NTU) SG Singapore (SG) Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH) SE Sweden (SE)

How to cite

APA:

Skote, M., Mishra, M., Negi, P.S., Wu, Y., Lee, H.M., & Schlatter, P. (2016). Wall oscillation induced drag reduction of turbulent boundary layers. In Alessandro Talamelli, Joachim Peinke, Gerrit Kampers, Martin Oberlack, Marta Wacławczyk (Eds.), Springer Proceedings in Physics (pp. 161-165). Warsaw, POL: Springer Science and Business Media, LLC.

MLA:

Skote, Martin, et al. "Wall oscillation induced drag reduction of turbulent boundary layers." Proceedings of the 6th International Conference on Progress in Turbulence, iTi 2014, Warsaw, POL Ed. Alessandro Talamelli, Joachim Peinke, Gerrit Kampers, Martin Oberlack, Marta Wacławczyk, Springer Science and Business Media, LLC, 2016. 161-165.

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