標題: Titlebook: Direct and Large-Eddy Simulation III; Proceedings of the I Peter R. Voke,Neil D. Sandham,Leonhard Kleiser Conference proceedings 1999 Sprin [打印本頁] 作者: 烏鴉 時間: 2025-3-21 19:12
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書目名稱Direct and Large-Eddy Simulation III讀者反饋學科排名
作者: arousal 時間: 2025-3-21 21:27 作者: 額外的事 時間: 2025-3-22 02:38
From RANS to DNS: Towards a Bridging Model,n of the author this point is not only important for practical reasons, but it is also fundamental from the theoretical point of view. In the paper some current proposals are discussed, a new definition of LES that should be more flexible and reconcilable with RANS is proposed and a new interpretation of the dynamic model is finally developed.作者: 遭受 時間: 2025-3-22 06:34 作者: GRAVE 時間: 2025-3-22 12:36
Large Eddy Simulation of a Spatially Growing Boundary Layer Using a Dynamic Mixed Model,Reynolds number to another. But our understanding of the turbulent mechanisms and interactions between the coherent structure in the boundary layer and the small scales is not clear yet. Our work lies within this scope.作者: 打谷工具 時間: 2025-3-22 14:21
Applications of a Lagrangian Mixed SGS Model in Generalized Coordinates,ct simulation and experimental results in two flows, a plane channel flow at ..= 395, and the turbulent flow over a two-dimensional wavy wall, were carried out. The LES results compare well with numerical and experimental data.作者: 打谷工具 時間: 2025-3-22 20:37 作者: amphibian 時間: 2025-3-22 23:58
X-Ray Absorption Spectroscopy (XAS)these models do not to reproduce the stresses correctly, even on the average, and this is traced to the incorrect stress-strain correlation of the eddy-viscosity. Mean stresses are however large-scale quantities which are carried by the resolved structures if the resolution is fine enough. Explicit limits are given.作者: Kidnap 時間: 2025-3-23 03:54
Bioinformatic Techniques on Marine Genomicsn of the author this point is not only important for practical reasons, but it is also fundamental from the theoretical point of view. In the paper some current proposals are discussed, a new definition of LES that should be more flexible and reconcilable with RANS is proposed and a new interpretation of the dynamic model is finally developed.作者: Commemorate 時間: 2025-3-23 08:22
Conference proceedings 1999which was the definition and agreement of the 1999 Newton Institute Research Programme on Turbulence. The main aim of the- month programme, held at the institute in Cambridge, was to bring together the mathematics and engineering communities involved in the turbulence area to address the many proble作者: extrovert 時間: 2025-3-23 10:07 作者: Vo2-Max 時間: 2025-3-23 15:38
Norbert Lindlein Ph.D.,Gerd Leuchs Prof.rugation. Even with such a requirement, LES reduces dramatically the computational effort necessary to simulate the shock/homogeneous turbulence interaction with respect to DNS. Dynamic SGS models are found to improve markedly the quality of the results when compared to simple models like Smagorinsky’s.作者: 愛國者 時間: 2025-3-23 21:58
Sune Svanberg,Wolfgang Demtr?dergrid scale models such as the standard or the dynamic Smagorinsky model. The computational overhead of the ADM is similar to that of the scale-similarity model and is considerably less than that of dynamic models or the velocity estimation model.作者: 誘騙 時間: 2025-3-24 00:52 作者: DOLT 時間: 2025-3-24 04:05 作者: GLIB 時間: 2025-3-24 08:31 作者: modish 時間: 2025-3-24 12:31
Large-Eddy Simulation of Shock/Homogeneous Turbulence Interaction,rugation. Even with such a requirement, LES reduces dramatically the computational effort necessary to simulate the shock/homogeneous turbulence interaction with respect to DNS. Dynamic SGS models are found to improve markedly the quality of the results when compared to simple models like Smagorinsky’s.作者: Robust 時間: 2025-3-24 17:32
The Approximate Deconvolution Model Applied to LES of Turbulent Channel Flow,grid scale models such as the standard or the dynamic Smagorinsky model. The computational overhead of the ADM is similar to that of the scale-similarity model and is considerably less than that of dynamic models or the velocity estimation model.作者: GEM 時間: 2025-3-24 19:06
Deconvolution of Subgrid-Scales for the Simulation of Shock-Turbulence Interaction,proach is based on an expansion of the filtered field in terms of filter width, which is modified in the vicinity of discontinuities in order to exactly recover the filtered profile. We detail both approaches and investigate their feasibility for the inviscid Burgers equation, isothermal and full Euler equations.作者: eardrum 時間: 2025-3-24 23:20
Exact Expansions for Filtered-Scales Modelling with a Wide Class of LES Filters,namics. An approximation of this expansion is also derived for filters with a compact support in Fourier space. In this case, the filtered-scale can be decomposed into two parts corresponding respectively to reversible and irreversible effects.作者: 大酒杯 時間: 2025-3-25 05:41
https://doi.org/10.1007/978-3-319-42928-1nt plumes compare well with the experimental results of Cetegen et. al. for different Froude numbers and density ratios. Comparisons have also been carried out between the results of a DNS and the present LES and good agreement has been reached. Some statistical quantities and different terms in the vorticity equation are analyzed.作者: WAX 時間: 2025-3-25 10:13
X-Ray Absorption Spectroscopy (XAS) the dissipation. As the eddies are regenerated, however, the secondary Reynolds stress 〈v′w′〉 becomes significant, the production increases again, and the flow reaches a quasi-equilibrium collateral state, characterized by higher turbulent kinetic energy and Reynolds stresses.作者: 抱負 時間: 2025-3-25 13:44
Springer Handbook of Lasers and Opticsat the model, mixed or not, transforms appropriately when differing frames of reference are considered. Modifications to the model are suggested for the case in which the unfiltered field(s) has discontinuities.作者: 愚蠢人 時間: 2025-3-25 16:24 作者: 才能 時間: 2025-3-25 20:13
Large-Eddy Simulation of a Three-Dimensional Shear-Driven Turbulent Boundary Layer, the dissipation. As the eddies are regenerated, however, the secondary Reynolds stress 〈v′w′〉 becomes significant, the production increases again, and the flow reaches a quasi-equilibrium collateral state, characterized by higher turbulent kinetic energy and Reynolds stresses.作者: 耕種 時間: 2025-3-26 03:26
A Tensor-Diffusivity Subgrid Model for Large-Eddy Simulation,at the model, mixed or not, transforms appropriately when differing frames of reference are considered. Modifications to the model are suggested for the case in which the unfiltered field(s) has discontinuities.作者: 喧鬧 時間: 2025-3-26 08:03
1382-4309 utcome of which was the definition and agreement of the 1999 Newton Institute Research Programme on Turbulence. The main aim of the- month programme, held at the institute in Cambridge, was to bring together the mathematics and engineering communities involved in the turbulence area to address the m作者: misanthrope 時間: 2025-3-26 12:32 作者: Arteriography 時間: 2025-3-26 13:36
X-Ray Absorption Spectroscopy (XAS)Reynolds number to another. But our understanding of the turbulent mechanisms and interactions between the coherent structure in the boundary layer and the small scales is not clear yet. Our work lies within this scope.作者: 純樸 時間: 2025-3-26 19:58
Reference work Apr 20071st editionct simulation and experimental results in two flows, a plane channel flow at ..= 395, and the turbulent flow over a two-dimensional wavy wall, were carried out. The LES results compare well with numerical and experimental data.作者: TOM 時間: 2025-3-26 22:31
ERCOFTAC Serieshttp://image.papertrans.cn/e/image/280644.jpg作者: 威脅你 時間: 2025-3-27 04:35
Direct and Large-Eddy Simulation III978-94-015-9285-7Series ISSN 1382-4309 Series E-ISSN 2215-1826 作者: arsenal 時間: 2025-3-27 06:22 作者: 花爭吵 時間: 2025-3-27 10:21 作者: 使無效 時間: 2025-3-27 13:58
Reinhard M?rz,Christoph W?chterarried out. These models are not based on the classical Fickian approximation and do not induce necessarily an alignment between the SGS heat flux vector and the gradient of the resolved temperature..Six SGS models are investigated, on two grids. The results are compared with DNS results obtained by Kawamura . [2].作者: commodity 時間: 2025-3-27 20:04
The Global Positioning System (GPS)omplex flows when using nonuniform filter-widths are analysed in some detail. The magnitudes of discretisation and modelling errors arising in a turbulent mixing layer are determined and their interaction is shown to lead to partial cancellation of errors for various spatial discretisation methods.作者: Inflated 時間: 2025-3-28 00:30 作者: TAP 時間: 2025-3-28 05:14
Chinese Navigation Satellite Systemsions (LES). There are various candidates for the subgrid-scale modeling used in LES. A preliminary examination of the role of temporal and spatial variability of the eddy viscosity and diffusivity used in such models is presented here. A specific comparison between the Smagorinsky model and a simpli作者: 苦笑 時間: 2025-3-28 06:40
https://doi.org/10.1007/978-3-319-42928-1n the predictor-corrector approach for low Mach number compressible flows. The Adams-Bashforth scheme is used for time marching integration and a QUICK difference is used for space discretization on a staggered grid for the 3D Navier-Stokes equations..As a test case, a turbulent isothermal jet is ca作者: 連接 時間: 2025-3-28 11:46 作者: 記成螞蟻 時間: 2025-3-28 16:57 作者: 外面 時間: 2025-3-28 19:50
X-Ray Absorption Spectroscopy (XAS)Smagorinsky combination. It is argued that they reproduce the turbulent dissipation relatively well, but that their main advantage is that they respond to modelling errors with a feedback mechanism that adjusts the dissipation without substantially modifying the larger scales. It is next found that 作者: 帶子 時間: 2025-3-28 23:14 作者: critique 時間: 2025-3-29 03:14
X-Ray Absorption Spectroscopy (XAS)erimental results and empirical models for the turbulent boundary layer on a flat plate are available. These are used to extrapolate results from one Reynolds number to another. But our understanding of the turbulent mechanisms and interactions between the coherent structure in the boundary layer an作者: CRACY 時間: 2025-3-29 07:28
Alexander Goushcha Prof.,Bernd Tabbert Dr.is 2.26 degrees and the Mach number 0.799. A laminar separation bubble is formed right after the shock due to the pressure rise caused by the shock, so called shock induced separation. The flow reattaches and undergoes transition to turbulence. A turbulent separated region forms at the trailing edge作者: 揉雜 時間: 2025-3-29 12:58
Norbert Lindlein Ph.D.,Gerd Leuchs Prof.nsky Model, Mixed Scale Model, Dynamic Smagorinsky Model, Dynamic Mixed Model). The code was successfully validated by comparisons with the DNS results of Lee . al. and, from a numerical point of view, the hybrid flux approach presented here demonstrates a very satisfactory behaviour. The general co作者: 階層 時間: 2025-3-29 15:53 作者: humectant 時間: 2025-3-29 22:51
Springer Handbook of Lasers and Opticsirst two terms are retained, the result is a diffusive subgrid term with a tensor diffusivity. This tensor is proportional to the rate-of-strain tensor of the large-scale velocity field. This leads to negative diffusion in the stretching directions. Implications of this result are considered for the作者: 平息 時間: 2025-3-30 00:22 作者: 左右連貫 時間: 2025-3-30 06:02 作者: Judicious 時間: 2025-3-30 11:35 作者: COWER 時間: 2025-3-30 16:02 作者: 討好美人 時間: 2025-3-30 19:19 作者: 組成 時間: 2025-3-30 23:59
Bioinformatic Techniques on Marine Genomics, LES, and the statistical approach based on the Reynolds Averaged Reynolds Equations, RANS. These methodologies produce different representations at different levels of resolution, and the idea of a modelling approach that should . the gap between the different procedures is explored. In the opinio作者: 背信 時間: 2025-3-31 03:13 作者: 轉(zhuǎn)向 時間: 2025-3-31 08:38 作者: Bph773 時間: 2025-3-31 12:39 作者: Range-Of-Motion 時間: 2025-3-31 13:22
Comparison of Two One-Equation Subgrid Models in Recirculating Flows,reverse transport of turbulent energy (‘backscatter’). This work is part of the project “Large Eddy Simulation for Computing the Flow Around Vehicles” (./~Lada/projects/sinisa/proright.html) in collaboration between the Department of Thermo and Fluid Dynamics at Chalmers and the CFD group at Volvo Car Corporation.作者: Perigee 時間: 2025-3-31 19:16
Assessment of Non-Fickian Subgrid-Scale Models for Passive Scalar in a Channel Flow,arried out. These models are not based on the classical Fickian approximation and do not induce necessarily an alignment between the SGS heat flux vector and the gradient of the resolved temperature..Six SGS models are investigated, on two grids. The results are compared with DNS results obtained by Kawamura . [2].作者: 聰明 時間: 2025-3-31 22:50 作者: 幻影 時間: 2025-4-1 02:26
Large Eddy Simulation of a Square Duct with a Heat Flux,same temperature is considered. Good agreement with previous incompressible DNS and LES results is obtained both for the mean and turbulent statistics. The heated duct with a larger temperature prescribed at one wall is then considered. We observe an amplification of the near wall secondary flows, a作者: Plaque 時間: 2025-4-1 07:12 作者: FRET 時間: 2025-4-1 13:09
