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A time-average filtering technique to improve the efficiency of two-layer wall models for large eddy simulation in complex geometries

Author
Calafell, J.; Trias, F. X.; Lehmkuhl, O.; Oliva, A.
Type of activity
Journal article
Journal
Computers and fluids
Date of publication
2019-06-30
Volume
188
First page
44
Last page
59
DOI
10.1016/j.compfluid.2019.03.026
Repository
http://hdl.handle.net/2117/133647 Open in new window
URL
https://www.sciencedirect.com/science/article/abs/pii/S0045793018306169 Open in new window
Abstract
Two-Layer wall models have been recurrently studied since they represent a good physical model for Large Eddy Simulations with underresolved wall regions. Specifically, those based on the Reynolds Averaged Navier-Stokes equations are of special interest, since they can be applied to a wide range of conditions including non-equilibrium flows. Nonetheless, these models are affected by two recurrent problems, the “log-layer mismatch” and the resolved Reynolds stresses inflow, which until now, h...
Citation
Calafell, J. [et al.]. A time-average filtering technique to improve the efficiency of two-layer wall models for large eddy simulation in complex geometries. "Computers and fluids", 30 Juny 2019, vol. 188, p. 44-59.
Keywords
Large eddy simulation, Time-Filtering Boundary layer, Two-Layer model, Wall modeling
Group of research
CTTC - Heat and Mass Transfer Technological Center

Participants