Results 61 to 70 of about 52,645 (193)
, 2012 We consider two Large Eddy Simulation (LES) models for the approximation of large scales of the equations of Magnetohydrodynamics (MHD in the sequel). We study two $\alpha$-models, which are obtained adapting to the MHD the approach by Stolz and Adams ...
Berselli, Luigi C. +2 more
core +3 more sources
Large-eddy simulation and wall modelling of turbulent channel flow [PDF]
, 2009 We report large-eddy simulation (LES) of turbulent channel flow. This LES neither resolves nor partially resolves the near-wall region. Instead, we develop a special near-wall subgrid-scale (SGS) model based on wall-parallel filtering and wall-normal ...
Chung, D., Pullin, D. I.
core +1 more source
Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes
Applied and Computational MechanicsDetached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter’s Shear Stress Transport (SST) model as well as the DES variant of the Kok's Turbulent/Non-Turbulent model (TNT), Extra ...
Hájek L. +3 more
doaj +1 more source
Numerical simulations of hydrogen auto-ignition in a turbulent co-flow of heated air [PDF]
, 2009 Our research objective is the performance of Large-Eddy Simulation (LES) with the first order Conditional Moment Closure (CMC) of the test case experimentally studied by Markides and Mastorakos [1].
Lacor, Chris +4 more
core
Large eddy simulations (LES) of inclined dense jets in coastal waters [PDF]
, 2019 Desalination plants are increasingly common to augment the freshwater supply to ease the pressure on the demand of freshwater due to the rapid global urbanization. In view of potential environmental impacts, the brine outfall of desalination plants must be properly designed to ensure good mixing with the surrounding ambient seawater.
openaire +2 more sources
EnergiesThis study investigates the effectiveness of the large eddy simulation version of the Weather Research and Forecasting model (WRF-LES) in reproducing the atmospheric conditions observed during a Perdigão field experiment.
Erkan Yılmaz +2 more
doaj +1 more source
Analysis of Compound Open Channel Flow Using Large Eddy Simulation (LES)
Ecology and Resilient Infrastructure, 2017 본 연구는 OpenFOAM의 large eddy simulation (LES)를 이용하여 복단면 흐름을 분석하였다. LES는 여과된 연속방정식과 운동량 방정식을 수치적으로 해석하였다. 일방정식 LES와 비균일 격자를 적용하여 벽 부근의 난류 비등방성과 이차류를 재현하였다. 복단면 개수로 난류의 LES 결과는 홍수터의 수심이 깊은 경우와 얕은 경우에 대해서 제시하였다. 이들 결과는 실험 결과와 비교하였으며 실험결과와 계산 결과는 부합되는 양상을 보여준다. 또한 이차류를 생성하는 난류 비등방성의 역할에 대해서 제시하고 있다.
openaire +2 more sources
Hybrid RANS/LES of plane jets impinging on a flat plate at small nozzle-plate distances [PDF]
, 2012 A k-omega BASED HYBRID RANS/LES (Reynolds-averaged Navier-Stokes/large eddy simulation) model is tested for simulation of plane impinging jets at various nozzle-plate distances (H/B), where H is the distance and B is the slot's width) and various ...
Degroote, Joris +4 more
core +2 more sources
Large-Eddy Simulations of Fluid and Magnetohydrodynamic Turbulence Using Renormalized Parameters
, 2003 In this paper a procedure for large-eddy simulation (LES) has been devised for fluid and magnetohydrodynamic turbulence in Fourier space using the renormalized parameters. The parameters calculated using field theory have been taken from recent papers by
D Carati +22 more
core +1 more source