Wall modeling via function enrichment: Extension to detached-eddy simulation
نویسندگان
چکیده
منابع مشابه
Detached-eddy Simulation: Current Status and Perspectives
Detached-Eddy Simulation (DES) is a hybrid technique proposed in 1997 as a numerically feasible and plausibly accurate approach for predicting massively separated flows. Since its inception the method has been applied to a range of configurations including simple shapes such as cylinders, spheres and aircraft forebodies, in addition to complex geometries including fighter aircraft. The accuracy...
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We give the \philosophy", fairly complete instructions, a sketch and examples of creating Detached-Eddy Simulation (DES) grids from simple to elaborate, with a priority on external ows. Although DES is not a zonal method, ow regions with widely di erent gridding requirements emerge, and should be accommodated as far as possible if a good use of grid points is to be made. This is not unique to D...
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An understanding of the vortical structures which comprise the vortical flowfield around slender bodies is essential for the development of highly maneuverable and high angle of attack flight. This is primarily due to the physical limits these phenomena impose on aircraft and missile s at extreme flight conditions. Demands for more maneuverable air vehicles have pushed the limits of current CFD...
متن کاملDetached-Eddy Simulation Based on the v-f Model
Abstract: Detached-eddy simulation (DES) based on the v-f Reynolds-averaged Navier-Stokes (RANS) model is developed and tested. The v-f model incorporates the anisotropy of near-wall turbulence, which is absent in other RANS models commonly used in the DES community. The v-f RANS model is modi ed in order that the proposed v-f -based DES formulation reduces to a transport equation for the subgr...
متن کاملDetached-Eddy Simulation of Vortex Generator Jet Using Chimera Grids
This paper aims at numerically analysing the effect of an active flow control (AFC) by a vortex generator jet (VGJ) submerged in a boundary layer via Chimera Grids and DetachedEddy Simulation (DES). The performance of DES results are judged against Reynolds-Averaged Navier-Stokes (RANS) and compared with the experiments that showed an unsteady vortex motion downstream of VGJ. Experimental resul...
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ژورنال
عنوان ژورنال: Computers & Fluids
سال: 2019
ISSN: 0045-7930
DOI: 10.1016/j.compfluid.2018.07.019