Zobrazeno 1 - 10
of 27
pro vyhledávání: '"C. David Pruett"'
Publikováno v:
Physics of Fluids. 32:065112
In this work, we propose an approach for Temporal Large-Eddy Simulation (TLES) with direct deconvolution. In contrast to previous approaches such as the Temporal Approximate Deconvolution Model (TADM) by Pruett et al. [“A temporal approximate decon
Autor:
C. David Pruett
Publikováno v:
Computers & Fluids. 109:38-48
For numerical simulations of inflow-outflow problems, the outflow condition is virtually always non-physical and often problematic. For such problems it is customary to append a “buffer domain” (“buffer zone” or “sponge layer”) to the com
Publikováno v:
Computer Physics Communications. 182:1187-1198
Previously, Pruett et al. (2003) [3] described an N -body integrator of arbitrarily high order M with an asymptotic operation count of O ( M 2 N 2 ) . The algorithm's structure lends itself readily to data parallelization, which we document and demon
Publikováno v:
Applied Mathematics and Computation. 216:3728-3738
Experience with fluid-flow simulation suggests that, in some instances, under-resolved direct numerical simulation (DNS), without a residual-stress model per se but with artificial damping of small scales to account for energy lost in the cascade fro
Publikováno v:
Journal of Computational Physics. 187:298-317
Picard iteration is normally considered a theoretical tool whose primary utility is to establish the existence and uniqueness of solutions to first-order systems of ordinary differential equations (ODEs). However, in 1996, Parker and Sochacki [Neural
Publikováno v:
Physics of Fluids. 13:2578-2589
Although subgrid-scale models of similarity type are insufficiently dissipative for practical applications to large-eddy simulation, in recently published a priori analyses, they perform remarkably well in the sense of correlating highly against exac
Autor:
C. David Pruett
Publikováno v:
AIAA Journal. 38:1634-1642
An approach to large-eddy simulation is developed whose subgrid-scale model incorporates Eulerian time-domain filtering, in contrast to conventional approaches that exploit spatial filtering. For applications to large-eddy simulation, time-domain fil
Autor:
Nikolaus A. Adams, C. David Pruett
Publikováno v:
Physics of Fluids. 12:1133-1142
The decay of isotropic turbulence a compressible flow is examined by direct numerical simulation (DNS). A priori analyses of the DNS data are then performed to evaluate three subgrid-scale (SGS) models for large-eddy simulation (LES): a generalized S
Publikováno v:
Computers & Fluids. 29:33-62
A direct numerical simulation (DNS) algorithm has been developed and validated for use in the investigation of crossflow instability on supersonic swept wings, an application of potential relevance to the design of the High-Speed Civil Transport (HSC
Autor:
C. David Pruett
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 137:379-393
A semi-implicit boundary-layer method is developed for application to spatially evolving internal boundary layers in compressible fluids. The method circumvents convergence difficulties that may arise with fully implicit marching schemes whenever the