Results 31 to 40 of about 13,803 (197)
Effects of Aeroelastic Walls on the Aeroacoustics in Transonic Cavity Flow
Aerospace, 2022 The effects of elastic cavity walls on noise generation at transonic speed are investigated for the generic M219 cavity. The flow is simulated with the Spalart–Allmaras (SA) improved delayed detached-eddy simulation (IDDES) turbulence model in ...
Stefan Nilsson +3 more
doaj +1 more source
Improving Separation Prediction of Cyclone Separators with a Hybrid URANS-LES Turbulence Model
Powders, 2023 The CFD simulation of cyclone separators has remarkably evolved over the past decades. Nowadays, computational models are essential for designing, analyzing, and optimizing these devices.
Rafaela Gomide Corrêa +2 more
doaj +1 more source
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 +4 more sources
Towards a Predictive Hybrid RANS/LES Framework [PDF]
AIAA Scitech 2019 Forum, 2019 Predictive simulation of many complex flows requires moving beyond Reynolds-averaged Navier-Stokes (RANS) based models to representations resolving at least some scales of turbulence in at least some regions of the flow. To resolve turbulence where necessary while avoiding the cost of performing large eddy simulation (LES) everywhere, a broad range of ...
Haering, Sigfried +2 more
openaire +2 more sources
International Journal of Turbomachinery, Propulsion and Power, 2020 The present study focuses on the impact of the underlying RANS turbulence model in the Zonal Detached Eddy Simulation (ZDES) method when used for secondary flow prediction.
Julien Marty, Cédric Uribe
doaj +1 more source
State of the Art in the Optimisation of Wind Turbine Performance Using CFD [PDF]
, 2019 Wind energy has received increasing attention in recent years due to its sustainability and geographically wide availability. The efficiency of wind energy utilisation highly depends on the performance of wind turbines, which convert the kinetic energy ...
Haghnegahdar, Mohammad Amin +5 more
core +1 more source
Hybrid turbulence models for atmospheric flow: A proper comparison with RANS models
E3S Web of Conferences, 2015 A compromise between the required accuracy and the need for affordable simulations for the wind industry might be achieved with the use of hybrid turbulence models.
Bautista Mary C. +2 more
doaj +1 more source
Scale-adaptive simulation of unsteady cavitation around a naca66 hydrofoil [PDF]
, 2019 Distances between consecutive aftershocks are analysed by means of mono- and multifractal theory with the aim of quantifying the complexity of the physical mechanism governing them, as well as their predictability and predictive instability.
Escaler Puigoriol, Francesc Xavier +3 more
core +2 more sources
Adaptive Embedded LES of the NASA Hump [PDF]
A scheme for adaptive embedded LES is proposed which automatically determines boundaries for LES regions in a hybrid LES-RANS computation, with the goal of minimizing the LES part of the computation for maximum accuracy with minimum cost.
Spalart P., Version V, Woodruff S. L.
core +2 more sources
Direct numerical simulation of backward-facing step flow at Ret = 395 and expansion ratio 2 [PDF]
, 2019 Backward-facing step (BFS) constitutes a canonical configuration to study wallbounded flows subject to massive expansions produced by abrupt changes in geometry.
Gorobets, Andrei +3 more
core +2 more sources