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- W2321394167 abstract "The maturation of high performance computer archi- tectures and computational algorithms has permitted de- tailed numerical modeling to play an increased role in the design and development of advanced military and com- mercial systems. Many applications, which in the past have relied solely on empiricism and sparse experimen- tal measurements, can now be analyzed rigorously using time dependent solution algorithms. This has prompted the development of a new generation of models that at- tempt to combine the robustness and efficiency offered by the Reynolds-Averaged Navier-Stokes equations with the higher level of modeling offered by the equations de- veloped for Large Eddy Simulation. The present study focuses on modifications to common second-order accu- rate Reynolds-Averaged Navier-Stokes algorithms that enhance the ability to capture large eddy motions in re- gions governed by the LES equations. Both incompress- ible (Poiseuille flow) and compressible (supersonic base flow) cases were considered. A simple means of control- ling numerical dissipation within a second-order accurate framework was shown to resolve turbulence structures at scales similar to those obtained using higher-order meth- ods with similar grids. The choice of flux limiter was also found to be a critical parameter in LES regions." @default.
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- W2321394167 date "2001-06-11" @default.
- W2321394167 modified "2023-09-27" @default.
- W2321394167 title "An assessment of boundary treatment and algorithm issues on hybrid RANS/LES solution strategies" @default.
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- W2321394167 doi "https://doi.org/10.2514/6.2001-2562" @default.
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