Results 11 to 20 of about 540 (136)

Calculation of External Vehicle Aerodynamic Noise Based on LES Subgrid Model

open access: yesEnergies, 2020
A dynamic Smagorinsky–Lilly model (DSLM) subgrid model on the basis of the Smagorinsky–Lilly subgrid model (SLM) was introduced in the OpenFOAM software.
Xingjun Hu   +6 more
doaj   +1 more source

A Differential Subgrid Stress Model and Its Assessment in Large Eddy Simulations of Non-Premixed Turbulent Combustion

open access: yesApplied Sciences, 2022
We present a new subgrid stress model for the large eddy simulation of turbulent flows based on the solution of transport equations for stress tensor components.
Roman Balabanov   +4 more
doaj   +1 more source

Large Eddy Simulation with Energy-Conserving Schemes and the Smagorinsky Model: A Note on Accuracy and Computational Efficiency

open access: yesEnergies, 2018
Despite advances in turbulence modelling, the Smagorinsky model remains a popular choice for large eddy simulation (LES) due to its simplicity and ease of use.
Dhruv Mehta   +3 more
doaj   +1 more source

Effect of Different Subgrid-Scale Models and Inflow Turbulence Conditions on the Boundary Layer Transition in a Transonic Linear Turbine Cascade

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2021
The aim of this work is to study the influence of different subgrid-scale (SGS) closure models and inflow turbulence conditions on the boundary layer transition on the suction side of a highly loaded transonic turbine cascade in the presence of high free-
Ettore Bertolini   +2 more
doaj   +1 more source

Study of unsteady cavitation on NACA66 hydrofoil using dynamic cubic nonlinear subgrid-scale model

open access: yesAdvances in Mechanical Engineering, 2015
In this article, we describe the use of a new dynamic cubic nonlinear model, a new nonlinear subgrid-scale model, for simulating the cavitating flow around an NACA66 series hydrofoil. For comparison, the dynamic Smagorinsky model is also used.
Xianbei Huang   +3 more
doaj   +1 more source

Adding complex terrain and stable atmospheric condition capability to the OpenFOAM-based flow solver of the simulator for on/offshore wind farm applications (SOWFA)

open access: yesITM Web of Conferences, 2014
The National Renewable Energy Laboratory's Simulator for On/Offshore Wind Farm Applications contains an OpenFOAM-based flow solver for performing large-eddy simulation of flow through wind plants.
Churchfield Matthew J.   +2 more
doaj   +1 more source

Comparative Study of Different Turbulence Models for Cavitational Flows around NACA0012 Hydrofoil

open access: yesJournal of Marine Science and Engineering, 2021
The present work focuses on the comparison of the numerical simulation of sheet/cloud cavitation with the Reynolds Average Navier-Stokes and Large Eddy Simulation(RANS and LES) methods around NACA0012 hydrofoil in water flow.
Minsheng Zhao, Decheng Wan, Yangyang Gao
doaj   +1 more source

A generalized formulation of the dynamic Smagorinsky model

open access: yesMeteorologische Zeitschrift, 2017
A generalized formulation of the Dynamic Smagorinsky Model (DSM) is proposed as a versatile turbulent momentum diffusion scheme for Large-Eddy Simulations.
Urs Schaefer-Rolffs
doaj   +1 more source

Numerical Modeling of Formation and Rise of Gas and Dust Cloud from Large Scale Commercial Blasting

open access: yesAtmosphere, 2020
The emission of dust particles into the atmosphere during rock mass breaking by blasting in ore mining open-pits is one of the factors that determine the ground-level air pollution in the vicinity of pits.
Valery M. Khazins   +2 more
doaj   +1 more source

3D Numerical Study of the Impact of Macro-Roughnesses on a Tidal Turbine, on Its Performance and Hydrodynamic Wake

open access: yesJournal of Marine Science and Engineering, 2021
Biofouling is an important factor to consider when calculating the energetic efficiency of tidal farms. Despite the fact that biofouling effects have been widely investigated in the past for naval applications, very few studies concern tidal turbines ...
Ilan Robin   +2 more
doaj   +1 more source

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