Large-scale friction control in turbulent wall flow
Schlatter P, Örlü R, Chin C, Hutchins N, Monty J (2015)
Publication Type: Conference contribution
Publication year: 2015
Publisher: TSFP-9
Book Volume: 3
Conference Proceedings Title: 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Event location: Melbourne, VIC, AUS
ISBN: 9780000000002
Abstract
The present study reconsiders the control scheme proposed by Schoppa & Hussain [Phys Fluids 10:1049-1051 (1998)], using new sets of numerical simulations in a turbulent channel at a friction Reynolds number of 180. In particular, it is aimed at better characterising the physics of the control as well as investigate the optimal parameters. Results indicate that a clear maximum efficiency in drag reduction is reached for the case with a viscous-scaled spanwise wavelength of the vortices of 1200, which yields a drag reduction of 18%, contrary to the smaller wavelength of 400 suggested as the most efficient vortex in Schoppa & Hussain.
Authors with CRIS profile
Involved external institutions
The University of Melbourne
Australia (AU)
Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH)
Sweden (SE)
Australia (AU)
Royal Institute of Technology / Kungliga Tekniska Högskolan (KTH)
Sweden (SE)
How to cite
APA:
Schlatter, P., Örlü, R., Chin, C., Hutchins, N., & Monty, J. (2015). Large-scale friction control in turbulent wall flow. In 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015. Melbourne, VIC, AUS: TSFP-9.
MLA:
Schlatter, Philipp, et al. "Large-scale friction control in turbulent wall flow." Proceedings of the 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, Melbourne, VIC, AUS TSFP-9, 2015.
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