Large-eddy simulation of highly-disturbed turbulent flows in a V-shaped rib-roughened duct

Xingjun Fang, Bing Chen Wang, Zixuan Yang, Mark F. Tachie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, highly-disturbed turbulent flows confined within a duct with equally spaced V-shaped ribs mounted on one wall are investigated using large-eddy simulation (LES). Two different inclined V-shaped (60° and 45°) rib cases are studied in comparison with the perpendicular (transverse) rib case. The results indicate that secondary flow appears as a pair of streamwise elongated vortices in all the cases, and its strength increases monotonically as the rib angle decreases. The effects of different shaped ribs on turbulence kinetic energy (TKE), TKE production rate and coherent structures are systematically investigated.

Original languageEnglish (US)
Title of host publication9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
PublisherTSFP-9
ISBN (Electronic)9780000000002
StatePublished - Jan 1 2015
Event9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 - Melbourne, Australia
Duration: Jun 30 2015Jul 3 2015

Publication series

Name9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Volume1

Other

Other9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
CountryAustralia
CityMelbourne
Period6/30/157/3/15

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