Abstract
The paper presents the results of LES application for turbulent channel flow with varying pressure gradient obtained by the adequate curvature of one of the wall. The adverse pressure gradient in the second part of the channel together with a wall curvature results in small separation of the flow at that side. The main objective of the paper was an assessment of various subgrid models implemented in two different codes as well as the sensitivity of the predictive accuracy to grid resolution. The simulations were performed on a few levels of coarsening grids compared to the reference DNS. The influence of the grid refinement and constant parameters for the subgrid-scale models were investigated. It was demonstrated that all subgrid-scale models require a comparable minimum grid refinement in order to capture accurately the recirculation region.
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Lele, S.K.: Compact finite difference schemes with spectral-like resolution. J. Comput. Phys. 103, 16–42 (1991)
Lilly, D.K.: A proposed modification of the Germano subgrid-scale closure method. Phys. Fluids A 4, 633–635 (1992)
Marquillie, M., Laval, J.P., Dolganov, R.: Direct numerical simulation of separated channel flows with a smooth profile. J. Turbul. 9(1), 1–23 (2008)
Meyers, J., Geurts, B.J., Baelmans, M.: Database analysis of errors in large-eddy simulation. Phys. Fluids 15(9), 2740–2755 (2003)
Meyers, J., Sagaut, P., Geurts, B.: A computational error assessment of central finite-volume discretizations in large-eddy simulation using a Smagorinsky model. J. Comput. Phys. 227, 156–173 (2007)
Nicoud, F., Ducros, F.: Subgrid-scale stress modelling based on the square of the velocity gradient tensor. Flow Turbul. Combust. 62, 183–200 (1999)
Pasquetti, R., Bwemba, R., Cousin, L.: A pseudo-penalization method for high Reynolds number unsteady flows. Appl. Numer. Math. 58, 946–954 (2008)
Tyliszczak, A.: An efficient implementation of compact-pseudospectral method for turbulence modeling. TASK Q. 10(2), 125–138 (2006)
Acknowledgements
This work was supported by WALLTURB (A European synergy for the assessment of wall turbulence) which is funded by the EC under the 6th framework program (CONTRACT: AST4-CT-2005-516008). The DNS was performed through DEISA Extreme Computing Initiatives (DEISA is a Distributed European Infrastructure for Supercomputing Applications) and the LES with MFLOPS3D were performed at IDRIS (French CNRS Computing Facilities).
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Laval, JP., Elsner, W., Kuban, L., Marquillie, M. (2011). LES Modeling of Converging Diverging Turbulent Channel Flow. In: Stanislas, M., Jimenez, J., Marusic, I. (eds) Progress in Wall Turbulence: Understanding and Modeling. ERCOFTAC Series, vol 14. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9603-6_37
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DOI: https://doi.org/10.1007/978-90-481-9603-6_37
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-9602-9
Online ISBN: 978-90-481-9603-6
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