Large-Eddy Simulation of Turbulent Flow through a Straight Square Duct and a 180 degree Bend
Publication date
1994
Document type
Conference paper
Author
Rodi, Wolfgang
Editor
Voke, Peter R.
Kleiser, Leonhard
Chollet, Jean-Pierre
Organisational unit
Conference
First ERCOFTAC Workshop on Direct and Large–Eddy Simulation, Guildford, Surrey, UK, March 27–30, 1994
Series or journal
Fluid Mechanics and its Applications
Periodical volume
26
Book title
Selected Papers from the First ERCOFTAC Workshop on Direct and Large–Eddy Simulation, Guildford, Surrey, UK, March 27–30, 1994
Volume (part of multivolume book)
26
First page
273
Last page
285
Part of the university bibliography
Nein
Abstract
LES is expected to become a powerful tool for turbulent flow calculations of practical interest in the near future. The paper is concerned with the development and first applications of a finite-volume method based on curvilinear body-fitted grids suitable to simulate flows in or around complex geometries. Two different subgrid-scale models are implemented and tested. Because the near-wall region cannot be resolved for high-Reynolds-number flows, two different wall function approaches are applied. The turbulent flow through a straight duct at two different Reynolds numbers (Re = 4410/56690) and a 180 degree bend (Re = 56690) is investigated. While for the low-Reynolds-number flow the results are in close agreement with DNS and other LES data, the higher Reynolds number computations are not yet satisfactory when compared with available measurements. However, the main features of the flows like Prandtl's secondary motion of first and second kind are reasonably predicted by LES.
Cite as
Breuer, M., Rodi, W.: Large–Eddy Simulation of Turbulent Flow Through a Straight Square Duct and a 180^o Bend, Fluid Mechanics and its Applications, vol. 26, pp. 273–285, Direct and Large–Eddy Simulation I
Version
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