Near-wall modelling and free-stream turbulence effects on square cylinder unsteady heat transfer
conference contribution
posted on 2015-11-05, 11:35 authored by Xiao-Sheng (Shaun) Chen, Hao XiaHao XiaUnsteady flow passing a heated square cylinder has been investigated using a hybrid LES-RANS approach at a moderate Reynolds number of 22, 050. Two near-wall RANS models are blended smoothly to the
LES region. The two models applied have successfully reproduced time- and phase-averaged flow field. Encouraging convective heat transfer has been predicted. An increase in the convective heat flux is found on the cylinder top/bottom surface with imposed free-stream turbulence. More accurate prediction of velocity and Nusselt number profiles has been made by the use of LES-k! model.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Published in
8th International Symposium on Turbulence, Heat and Mass Transfer (THMT'15)Citation
CHEN, X. and XIA, H., 2015. Near-wall modelling and free-stream turbulence effects on square cylinder unsteady heat transfer. IN: 8th International Symposium on Turbulence, Heat and Mass Transfer (THMT'15), Sarajevo, Sept. 15-18th.Publisher
© Begell HouseVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2015Notes
This paper is a conference paper.Publisher version
Language
- en
