The minimal computational domain for capturing Taylor-Görtler vortices in streamwise-rotating channel flow

Zixuan Yang, Bing Chen Wang

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

Abstract

In this paper, the minimum computational domain size for correctly capturing Taylor-Görtler (TG) vortices in a streamwise-rotating plane channel is investigated using direct numerical simulations (DNS). To assess the effect of system rotation on the scales of TG vortices, a wide-range of rotation numbers have been tested, varying from Ro τ = 7.5 to 150. The highest rotation number tested in the current research far exceeds that reported in literature (Ro τ = 30) by Yang et al. (2010). In order to precisely capture TG vorticies, DNS has been performed in a very large box domain of 512πh ×2h×8πh, where h is one-half the channel height. A two-layer pattern of TG vortices is observed, and the scales of TG vortices are quantified using the pre-multiplied two-dimensional energy spectra.

Original languageEnglish (US)
Title of host publication10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
PublisherInternational Symposium on Turbulence and Shear Flow Phenomena, TSFP10
ISBN (Electronic)9780000000002
StatePublished - Jan 1 2017
Event10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017 - Chicago, United States
Duration: Jul 6 2017Jul 9 2017

Publication series

Name10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
Volume3

Other

Other10th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2017
CountryUnited States
CityChicago
Period7/6/177/9/17

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