Compute Canada

View All Papers
To Submit a new publication, Please visit the User's Section (logged in users only)

Publications:
To view a publication's Abstract (if available), click on publication's title
Author(s)
     Ugo Piomelli, Carlo Scalo
Title
     Large-eddy simulations of relaminarizing flows
Publication Name
     17th Annual Meeting of the CFD Society of Canada
Publication Type
     Proceedings
Publisher
     
Place
     
Editor(s)
     
Number
     
School
     
Volume
     
Chapter
     
Pages
     
Other Publication Information
     
Publication Year
     2009
Abstract
     The reversion of a turbulent flow to a laminar or quasi-laminar state may take very different paths, depending on the cause of the relaminarization, and modelling these flows is quite difficult. Large-eddy simulations (LES) may be quite effective as the large, momentum carrying eddies are accurately resolved; the unresolved, subgrid-scale (SGS) stresses, however, may still play an important role. We report here the results of an a priori analysis of the behaviour of the SGS stresses in two relaminarizing flows: a plane channel subjected to spanwise rotation, and a boundary layer subjected to a strong favorable pressure gradient resulting in freestream acceleration. The a priori test results are accompanied by actual LES, which highlight the effect of grid resolution and modelling errors on the dynamics of the relaminarization.
Keywords
     
Website
     http://
Paper Status
     Published
DOI / Publication ID
     hpcg1246



View All Papers