Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2006-07-11
2010-02-23
Shah, Kamini S (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S007000, C703S009000
Reexamination Certificate
active
07668705
ABSTRACT:
A technique that improves large-eddy simulation consists in replacing the instantaneous sub-grid scale eddy-viscosity (such as the dynamic Smagorinsky model eddy-viscosity) in the near-wall region with an eddy-viscosity computed from Reynolds Averaged Navier-Stokes eddy-viscosity and corrected dynamically using the resolved turbulent stress. The near-wall eddy-viscosity formulation is applied either with a wall stress model on coarse grids that do not resolve the wall or with wall-resolved grids coarsened in the wall-parallel directions. Reynolds averaged Navier-Stokes eddy-viscosity is computed either from a look-up table or from a simultaneous solution of a Reynolds Averaged Navier-Stokes turbulence model.
REFERENCES:
patent: 2003/0040894 (2003-02-01), Miyori et al.
patent: 2005/0107995 (2005-05-01), Inagaki
Hans J. Kaltenbach, “Towards a near-wall model for LES of a separated diffuser flow” by H. J. Kaltenbach, 1998, Center for Turbulence Research Annual Research Briefs, pp. 255-265.
“Large eddy simulation wall-modelling based on suboptimal control theory and linear stochastic estimation” by F. Nicoud et al, Oct. 2001, Physics of Fluids, vol. 13 No. 10, pp. 2968-1984.
“Large-eddy simulation: achievements and challenges” bu U. Piomell, 1999, Pergamon, Progress in Aerospace Sciences 35, pp. 335-362.
“Resolution requirements in large-eddy simulations of shear flows” by J. S. Baggett et al, 1997, Center for Turbulence Research Annual Research Briefs, pp. 51-66.
“Near-wall behavior of RANS turbulence models and implications for wall functions” by G. Kalitzin et al, Nov. 23, 2004, Elsevier, Journal of Computational Physics 204, pp. 265-291.
“Integration of RANS and LES Flow Solvers for Simultaneous Flow Computations” by J. U. Schluter et al, Jan. 9, 2003, American Institute of Aeronautics and Astronautics, AIAA 2003-0085, pp. 1-8.
H. Kaltenbach, “Towards a near-wall model for LES of a separated diffuser flow”, 1998, Center for Turbulence Research Annual Research Briefs, pp. 255-265.
F. Nicoud, J. S. Baggett, P. Moin, W. Cabot, “Large eddy simulation wall-modelling based on suboptimal control theory and linear stochastic estimation”, Oct. 2001, Physics of Fluids, vol. 13 No. 10, pp. 2968-1984.
U. Piomelli, “Large-eddy simulation: achievements and challenges”, 1999, Pergamon, Progress in Aerospace Sciences 35, pp. 335-362.
J. S. Baggett, J. Jimenez, A. G. Kravchenko, “Resolution requirements in large-eddy simulations of shear flows”, 1997, Center for Turbulence Research Annual Research Briefs, pp. 51-66.
G. Kalitzin, G. Medic, G. Iaccarino, P. Durbin, “Near-wall behavior of RANS turbulence models and implications for wall functions”, Nov. 2004, Elsevier, Journal of Computational Physics 204, pp. 265-291.
J. U. Schluter, “Integration of RANS and LES Flow Solvers for Simultaneous Flow Computations”, Jan. 2003, American Institute of Aeronautics and Astronautics, AIAA 2003-0085, pp. 1-8.
M. Strelets, Detached eddy simulation of massively separated flows, AIAA paper, 2001-0879.
N.V. Nikitin F. Nicoud, B. Wasistho, K.D. Squires and P.R. Spalart, An approach to wall modeling in large eddy simulations, Physics of fluids, pp. 1629-1632, vol. 12, No. 7, 2000.
U. Piomelli & E. Balaras, Wall layer models for LES, Annu. Rev. Fluid Mech, pp. 349-374, vol. 34, 2002.
W. Cabot, Wall models in large eddy simulations of separated flow. CTR, Annu. Res. Briefs, pp. 97-106, 1997.
M. Wang & P. Moin, Dynamic wall modeling for LES of complex flows, Physics of fluids, pp. 2043-2051, vol. 14, No. 7, 2002.
G. Kalitzin, J.A. Templeton & G. Medic, A near-wall eddy viscosity formulation for LES, lecture notes in computational science and engineering, vol. 56, Springer, 2006.
Kalitzin Georgi
Medic Gorazd
Templeton Jeremy Alan
Havan Hung
Shah Kamini S
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