Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/101617
Title: Direct numerical simulation of a turbulent boundary layer over an oscillating wall
Authors: Yudhistira, Indra
Skote, Martin
Keywords: DRNTU::Engineering::Mechanical engineering
Issue Date: 2011
Source: Yudhistira, I., & Skote, M. (2011). Direct numerical simulation of a turbulent boundary layer over an oscillating wall. Journal of turbulence, 12(9), 1-17.
Series/Report no.: Journal of turbulence
Abstract: Direct Numerical Simulations have been performed to study the effect of a partially oscillating wall on the turbulent boundary layer. Even though the Reynolds number is three times lower than in previous experimental investigations, many of the characteristic flow features are confirmed. The drag reduction is of the same magnitude as for higher Reynolds number flows, and the spatial development follows closely earlier experimental findings. The reduction of Reynolds shear stress is more pronounced than the decrease in streamwise and normal velocity fluctuations. In addition, comparisons are made with earlier numerical studies of channel flow. The sensitivity of the Reynolds shear stress on the time allowed for statistics collection is scrutinised, and the discrepancy in results from earlier experiments are, thus, explained.
URI: https://hdl.handle.net/10356/101617
http://hdl.handle.net/10220/18715
DOI: http://dx.doi.org/10.1080/14685248.2010.538397
Rights: © 2011 Taylor & Francis. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Turbulence, Taylor & Francis. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1080/14685248.2010.538397].
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