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Title:

INFLUENCE OF WALL SHEAR STRESS ON THE SECONDARY FLOW IN SQUARE DUCTS

Document type:
Konferenzbeitrag
Contribution type:
Textbeitrag / Aufsatz
Author(s):
Doehring, Alexander; Kaller Thomas; Schmidt Steffen; Adams, Nikolaus A.
Abstract:
We investigated turbulent duct flows with a square cross section using well-resolved large-eddy simulations (LES). A physically consistent subgrid-scale turbulence model is incorporated, that is based on the Adaptive Local Deconvolution Method (ALDM) for implicit LES. The wall shear stress is artificially modified at one of the four walls to mimic different surface properties. A direct numerical simulation (DNS) of a symmetrical duct flow is used as reference to asses the influence of a modified...     »
Keywords:
Ducts; Large eddy simulation; Reynolds number; Shear flow; Shear stress; Turbulence models
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Book / Congress title:
12th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2022
Date of congress:
19 July 2022through 22 July 2022
Year:
2022
Covered by:
Scopus
Language:
en
Notes:
Funding text 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).
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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