Modeling the wall shear stress in large-eddy simulation using graph neural networks
Data-Centric Engineering, 2023 As the Reynolds number increases, the large-eddy simulation (LES) of complex flows becomes increasingly intractable because near-wall turbulent structures become increasingly small.
Dorian Dupuy +3 more
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Dynamics of turbulent western-boundary currents at low latitude in a shallow-water model [PDF]
Ocean Science, 2015 The dynamics of low latitude turbulent western-boundary currents (WBCs) crossing the Equator are considered using numerical results from integrations of a reduced-gravity shallow-water model.
C. Q. C. Akuetevi, A. Wirth
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Overlapping turbulent boundary layers in an energetic coastal sea [PDF]
Ocean ScienceTurbulent mixing properties were directly observed to understand the interactions and overlapping events of wind-forced and tidally forced boundary layers in a deep, weakly stratified coastal sea.
A. F. Valcarcel +7 more
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Gaoyuan qixiang, 2022 Atmospheric boundary layer structure affects the exchange of material and energy between the earth and air， the dispersion of pollutants and human health.The boundary layer structure is significantly affected by surface heating and dynamics， but it is ...
Min ZHANG +3 more
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An Improved Synthetic Eddy Method for Generating Inlet Turbulent Boundary Layers
Aerospace, 2022 An improved synthetic eddy method (SEM) is proposed in this paper for generating the boundary layer at the inlet of a computational domain via direct numerical simulation.
Dapeng Xiong, Yinxin Yang, Yanan Wang
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Characterising Momentum Flux Events in High Reynolds Number Turbulent Boundary Layers
Fluids, 2021 The momentum flux in a canonical turbulent boundary layer is known to have a time-series signature that is characterised by a highly intermittent variation, which includes very short periods of intense flux activity. Here, we study the variation in these
Rahul Deshpande, Ivan Marusic
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Complex Effects of Free Stream Turbulence and Surface Roughness on the Transitional Intermittency
Communications, 2012 The comparison of transitional intermittency distributions in boundary layers on smooth and rough surface is presented. The conditional analysis of the instantaneous wall friction is applied on time records made in transitional boundary layers ...
Ondrej Hladik +3 more
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Constant flux layers with gravitational settling: links to aerosols, fog and deposition velocities [PDF]
Atmospheric Chemistry and Physics, 2021 Turbulent boundary layer concepts of constant flux layers and surface roughness lengths are extended to include aerosols and the effects of gravitational settling.
P. A. Taylor
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Implicit Subgrid-Scale Modeling of a Mach 2.5 Spatially Developing Turbulent Boundary Layer
Entropy, 2022 We employ numerically implicit subgrid-scale modeling provided by the well-known streamlined upwind/Petrov–Galerkin stabilization for the finite element discretization of advection–diffusion problems in a Large Eddy Simulation (LES) approach. Whereas its
Guillermo Araya, Christian Lagares
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Modelling vortex generator effects on turbulent boundary layers with integral boundary layer equations [PDF]
Wind Energy ScienceVortex generators (VGs) are known to delay separation and stall, allowing the design of airfoils with larger stall margins, particularly for thick airfoil sections in the inboard and midboard regions of modern slender wind turbine blades.
A. Sahoo +5 more
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