Results 11 to 20 of about 13,803 (197)

The State of the Art of Hybrid RANS/LES Modeling for the Simulation of Turbulent Flows. [PDF]

Flow Turbul Combust, 2017
Chaouat B.
europepmc   +2 more sources

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

Grid resolution assessment method for hybrid RANS-LES in turbomachinery

Engineering Applications of Computational Fluid Mechanics, 2022
Hybrid RANS-LES is a promising method for analyzing the complex flow structure in turbomachinery due to its excellent compromise between accuracy and computational cost.
Ruiyu Li, Lei Zhao, Ning Ge, Limin Gao, Mingjiu Ni   +4 more
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Modelling Study of Cycle-To-Cycle Variations (CCV) in Spark Ignition (SI)-Controlled Auto-Ignition (CAI) Hybrid Combustion Engine by Using Reynolds-Averaged Navier–Stokes (RANS) and Large Eddy Simulation (LES)

Energies, 2022
The spark ignition (SI)-controlled auto-ignition (CAI) hybrid combustion is characterized by early flame propagation combustion and subsequent auto-ignition combustion.
Xinyan Wang, Hua Zhao
doaj   +1 more source

Hybrid RANS/LES computation of plane impinging jet flow

Archives of Mechanics, 2011
Flow characteristics are presented of simulation results of plane impinging jets at high nozzle-plate distances, with two k-ω based hybrid RANS/LES (Reynolds Averaged Navier–Stokes/Large–Eddy Simulation) models and a k-ω RANS model. The first hybrid RANS/
S. Kubacki, J. Rokicki, E. Dick
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RANS and hybrid LES/RANS simulations of flow over a square cylinder

Advances in Aerodynamics, 2019
Unsteady RANS (URANS), hybrid LES/RANS and IDDES simulations were conducted to numerically investigate the velocity field around, and pressures distribution and forces over a square cylinder immersed in a uniform, steady oncoming flow with Reynolds ...
Jianghua Ke
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From Two-Equation Turbulence Models to Minimal Error Resolving Simulation Methods for Complex Turbulent Flows

Fluids, 2022
Hybrid RANS-LES methods are supposed to provide major contributions to future turbulent flow simulations, in particular for reliable flow predictions under conditions where validation data are unavailable. However, existing hybrid RANS-LES methods suffer
Stefan Heinz
doaj   +1 more source

Reynolds stress constrained large eddy simulation of separation flows in a U-duct

Propulsion and Power Research, 2014
This paper presents Reynolds stress constrained large eddy simulation (RSC-LES) method applied to a U-duct flow. Different from traditional Reynolds-averaged Navier-Stokes/detached eddy simulation (RANS/DES) hybrid method (including DES method), the RSC ...
Quanyong Xu, Yantao Yang
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Simulation of pollution dispersion behind a building using a RANS-LES model [PDF]

مجله مدل سازی در مهندسی, 2017
Today the air pollution is one of the biggest problem specially in mega cities and it effects directly on human health and environment. in this article pollution dispersion for the light gas pollutant around a building in turbulent 3D incompressible flow
ghassem heidarinejad, amir mohammad jadidi   +1 more
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A Hybrid Large Eddy Simulation Algorithm Based on the Implicit Domain Decomposition

Mathematics, 2023
The resolution of small near-wall eddies encountered in high-Reynolds number flows using large eddy simulation (LES) requires very fine meshes that may be computationally prohibitive. As a result, the use of wall-modeled LES as an alternative is becoming
Amir E. Fard, Sergey Utyuzhnikov
doaj   +1 more source