Results 1 to 10 of about 6,939 (199)
Hybrid RANS/LES of plane impinging jets with k-omega based models [PDF]
, 2010 Plane impinging jets with nozzle-plate distances H/B=10 at Re=13500 and H/B=9.2 at Re=20000 are simulated with k-omega based hybrid RANS/LES models. Three ways of substitution of the turbulent length scale by the local grid size in the LES mode of the ...
Dick, Erik, Kubacki, Slawomir
core +4 more sources
A Near-Wall Methodology for Large-Eddy Simulation Based on Dynamic Hybrid RANS-LES [PDF]
EntropyAttempts to mitigate the computational cost of fully resolved large-eddy simulation (LES) in the near-wall region include both the hybrid Reynolds-averaged Navier–Stokes/LES (HRL) and wall-modeled LES (WMLES) approaches.
Michael Tullis, D. Keith Walters
doaj +2 more sources
Numerical simulation of local and upwind temperature stratification on flow and dispersion in a bi-dimensional street canyon. [PDF]
PLoS ONEThe thermal effect mainly includes boundary temperature stratification and the local thermal effect. The combined effect of these factors on flow and dispersion in a bi-dimensional canyon was investigated by the RANS and LES methods to evaluate their ...
Xiaohui Huang, Lizhen Gao
doaj +2 more sources
An Overview of Hybrid RANS–LES Models Developed for Industrial CFD
Applied Sciences (Switzerland), 2021 An overview of scale-resolving simulation (SRS) methods used in ANSYS Computational Fluid Dynamics (CFD) software is provided. The main challenges, especially when computing boundary layers in large eddy simulation (LES) mode, will be discussed.
Florian Menter +3 more
exaly +3 more sources
Results in EngineeringIn the present article, we introduce a local hybrid RANS/LES turbulence model, the Flow-based Stress-Blended Eddy Simulation (Fb-SBES). The methodology is applied to urban flow simulations in atmospheric boundary layer.
Léo Cotteleer, Alessandro Parente
exaly +3 more sources
The State of the Art of Hybrid RANS/LES Modeling for the Simulation of Turbulent Flows [PDF]
Flow, Turbulence and Combustion, 2017 Bruno Chaouat
exaly +2 more sources
Active model split hybrid RANS/LES [PDF]
Physical Review Fluids, 2022 Reliably predictive simulation of complex flows requires a level of model sophistication and robustness exceeding the capabilities of current Reynolds-averaged Navier-Stokes (RANS) models. The necessary capability can often be provided by well-resolved large eddy simulation (LES), but, for many flows of interest, such simulations are too ...
Sigfried W. Haering +2 more
openaire +2 more sources
Large Eddy Simulation of Film Cooling with Bulk Flow Pulsation: Comparative Study of LES and RANS
Applied Sciences, 2020 The effects of bulk flow pulsations on film cooling in gas turbine blades were investigated by conducting large eddy simulation (LES) and Reynolds-averaged Navier–Stokes simulation (RANS).
Seung Il Baek, Joon Ahn
doaj +1 more source
Non-Isothermal Vortex Flow in the T-Junction Pipe
Energies, 2021 The numerical simulation approach of heat carrier mixing regimes in the T-junction shows that the RANS approach is beneficial for a qualitative flow analysis to obtain relatively agreed averaged velocity and temperature. Moreover, traditionally, the RANS
Tatyana A. Baranova +4 more
doaj +1 more source
Assessment of Hybrid RANS/LES Models in Heat and Fluid Flows around Staggered Pin-Fin Arrays
Energies, 2020 In the present work, the three-dimensional heat and fluid flows around staggered pin-fin arrays are predicted using two hybrid RANS/LES models (an improved delayed detached eddy simulation (IDDES) model and a stress-blended eddy simulation (SBES) model),
Byeong-Cheon Kim, Kyoungsik Chang
doaj +1 more source