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Title:

Influence of wall shear stress on the secondary flow in square ducts

Document type:
Zeitschriftenaufsatz
Author(s):
Doehring, A.; Kaller, T.; Schmidt, S.J.; Adams, N.A.
Abstract:
We investigate turbulent duct flows with a square cross section using well-resolved large-eddy simulations (LES). A physically consistent subgrid-scale turbulence model based on the Adaptive Local Deconvolution Method (ALDM) for implicit LES is used. The wall shear stress is artificially modified at one of the four walls to analyse the influence on the secondary flow. A direct numerical simulation (DNS) of a symmetrical duct flow is used as reference to assess the influence of a modified wall sh...     »
Keywords:
Duct; LES; Secondary flow; Wall shear stress
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
International Journal of Heat and Fluid Flow
Year:
2024
Journal volume:
105
Pages contribution:
109240
Covered by:
Scopus
Language:
en
Fulltext / DOI:
doi:10.1016/j.ijheatfluidflow.2023.109240
WWW:
https://www.sciencedirect.com/science/article/pii/S0142727X2300139X
Publisher:
Elsevier BV
E-ISSN:
0142-727X
Notes:
Acknowledgements The authors gratefully acknowledge the financial support provided by the German Research Foundation (Deutsche Forschungsgemeinschaft-DFG) within the framework of the Sonderforschungsbereich Transregio 40, SFB-TRR40 (Technological foundations for the design of thermally and mechanically highly loaded components of future space transportation systems). Computational resources have been provided by the Leibniz Supercomputing Centre Munich (LRZ).
Submitted:
30.01.2023
Accepted:
24.10.2023
Date of publication:
01.02.2024
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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