Results 11 to 20 of about 24,405,029 (336)
The Application of the γ-Reθt Transition Model Using Sustaining Turbulence
Energies, 2022 The freestream turbulence intensity is an important parameter for Tollmien–Schlichting waves and is also used as one of the key variables for the local- and transport-equation-based transition model in the simulations.
Meihong Zhang +3 more
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Astrophysical turbulence modeling [PDF]
Reports on Progress in Physics, 2011 The role of turbulence in various astrophysical settings is reviewed. Among the differences to laboratory and atmospheric turbulence we highlight the ubiquitous presence of magnetic fields that are generally produced and maintained by dynamo action.
Brandenburg, Axel, Nordlund, Åke
openaire +4 more sources
Inverse Design of Axis Fan for Permanent Magnet Drive Motor for Special Vehicles
Energies, 2023 The control of mechanical energy loss is especially key in the design of permanent magnet drive motors for special vehicles. This paper takes a 300 kW high-efficiency motor as an example, and under the operating condition of 9000 rev/min, in order to ...
Changjun Ma +5 more
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CFD Analysis of Wind Distribution around Buildings in Low-Density Urban Community
Mathematics, 2022 The computational fluid dynamics (CFDs) models based on the steady Reynolds-averaged Navier–Stokes equations (RANSs) using the k−ω two-equation turbulence model are considered in order to estimate the wind flow distribution around buildings.
Nidhal Hnaien +6 more
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Instability of the realizable k–ε turbulence model beneath surface waves
The Physics of Fluids, 2020 Recent research has proved that most widely used two-equation turbulence closure models are unconditionally unstable in regions of nearly potential flow having finite strain, as commonly found beneath non-breaking surface waves.
D. Fuhrman, Yuzhu Li
semanticscholar +1 more source
On a Certified Smagorinsky Reduced Basis Turbulence Model [PDF]
SIAM Journal on Numerical Analysis, 2017 In this work we present a reduced basis Smagorinsky turbulence model for steady flows. We approximate the nonlinear eddy diffusion term using the empirical interpolation method (cf. [M. A. Grepl et al., ESAIM Math. Model. Numer. Anal., 41 (2007), pp. 575-
T. C. Rebollo +4 more
semanticscholar +1 more source
Fluid-Solid Interaction Simulation Methodology for Coriolis Flowmeter Operation Analysis
Sensors, 2021 Numerical simulation is a widely used tool for Coriolis flowmeter (CFM) operation analysis. However, there is a lack of experimentally validated methodologies for the CFM simulation.
Evgeniia Shavrina +3 more
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Transitional Behavior of a Flow Regime in Shoaling Tsunami Boundary Layers
Journal of Marine Science and Engineering, 2020 The transitional flow regime of the bottom boundary layer under hypothetical shoaling tsunamis is investigated in the entire region from the tsunami source to the shallow sea area.
Hitoshi Tanaka +2 more
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Atmosphere, 2022 The effects of different modeling and solving approaches on the simulation of a steam ejector have been investigated with the computational fluid dynamics (CFD) technique. The four most frequently used and recommended turbulence models (standard k-ε, RNG
Jingshu Xiao +7 more
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CFD Simulations of Hydrogen Tank Fuelling: Sensitivity to Turbulence Model and Grid Resolution
Hydrogen, 2023 CFD modelling of compressed hydrogen fuelling provides information on the hydrogen and tank structure temperature dynamics required for onboard storage tank design and fuelling protocol development. This study compares five turbulence models to develop a
Hanguang Xie +3 more
doaj +1 more source