Large‐eddy Simulations of the Atmospheric Boundary Layer over an Alpine Glacier: Impact of Synoptic Flow Direction and Governing Processes
Sign Up to like & getrecommendations! Published in 2022 at "Quarterly Journal of the Royal Meteorological Society"
DOI: 10.1002/qj.4263
Abstract: Funding information BG acknowledges Austrian Science Foundation (FWF) grant number: I 3841-N32; IS acknowledges FWF grant number: T781-N32; TS acknowledges the Deutsche Forschungsgemeinschaft (DFG) grant number: SA 2339/7-1; The mass balance of mountain glaciers is… read more here.
Keywords: large eddy; boundary layer; grant number; eddy simulations ... See more keywords
Large eddy simulations of the turbulent flows of twin parallel jets
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.10.069
Abstract: Abstract Turbulent jet interactions play a significant role in terms of momentum and heat transfer. For example, in next generation nuclear reactors, high temperature flow mixing in the lower plenum and mixing fluctuations in the… read more here.
Keywords: turbulent flows; eddy simulations; large eddy; twin parallel ... See more keywords
Large Eddy Simulations of scaled HTGR lower plenum for assessment of turbulent mixing
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Engineering and Design"
DOI: 10.1016/j.nucengdes.2018.04.016
Abstract: Abstract The lower plenum of a High-Temperature Gas-Cooled Reactor (HTGR) consists of numerous jets from the core mixing together across a wide range of temperatures (differences as high as 300–400 K) and velocities (50–100 m/s). The flow… read more here.
Keywords: large eddy; lower plenum; eddy simulations; plenum ... See more keywords
Turbophoresis of small inertial particles: theoretical considerations and application to wall-modelled large-eddy simulations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.865
Abstract: In wall-bounded turbulent flows, the wall-normal gradient in turbulence intensity causes inertial particles to move preferentially toward the wall, leading to elevated concentration levels in the viscous sublayer. At first glance, wall-modelled large-eddy simulations may… read more here.
Keywords: large eddy; eddy simulations; modelled large; wall modelled ... See more keywords
Gabor mode enrichment in large eddy simulations of turbulent flow
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.622
Abstract: Abstract A turbulence enrichment model for subfilter-scale motions in large eddy simulations (LES) is comprehensively evaluated in the context of a posteriori analysis. The paper further develops the Gabor mode enrichment model first introduced in… read more here.
Keywords: large eddy; gabor mode; eddy simulations; scale ... See more keywords
A physics-inspired alternative to spatial filtering for large-eddy simulations of turbulent flows
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2021.1150
Abstract: Abstract Large-eddy simulations (LES) are widely used for computing high Reynolds number turbulent flows. Spatial filtering theory for LES is not without its shortcomings, including how to define filtering for wall-bounded flows, commutation errors for… read more here.
Keywords: large eddy; turbulent flows; physics; spatial filtering ... See more keywords
Large-eddy simulations of dense-gas dispersion within a high-Reynolds number turbulent boundary layer
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Fluids"
DOI: 10.1063/1.4999466
Abstract: Large-eddy simulations of flows over a backward-facing step with release of four different gases with increasing densities have been performed. The results have been analysed with particular emphasis on the part of the flow field… read more here.
Keywords: large eddy; eddy simulations; layer; number ... See more keywords
Comparison of Wall Treatments and Meshes in Large-Eddy Simulations of Mixing Tees
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Technology"
DOI: 10.1080/00295450.2018.1461518
Abstract: Abstract Large-eddy simulations (LESs) for two different T-junctions are performed for the prediction of thermal mixing loads on piping. In particular, the effects of wall treatment and mesh on temperature and wall heat flux fluctuations… read more here.
Keywords: large eddy; wall resolved; eddy simulations; resolved les ... See more keywords
Stratification Effects in the Turbulent Boundary Layer beneath a Melting Ice Shelf: Insights from Resolved Large-Eddy Simulations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physical Oceanography"
DOI: 10.1175/jpo-d-18-0252.1
Abstract: Ocean turbulence contributes to the basal melting and dissolution of ice shelves by transporting heat and salt toward the ice. The meltwater causes a stable salinity stratification to form beneath the ice that suppresses turbulence.… read more here.
Keywords: boundary layer; eddy simulations; large eddy; stratification ... See more keywords
The Influence of Submesoscales and Vertical Mixing on the Export of Sinking Tracers in Large-Eddy Simulations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Oceanography"
DOI: 10.1175/jpo-d-19-0267.1
Abstract: AbstractWe use idealized large-eddy simulations (LES) and a simple analytical theory to study the influence of submesoscales on the concentration and export of sinking particles from the mixed laye... read more here.
Keywords: large eddy; export sinking; influence submesoscales; eddy simulations ... See more keywords
Shallow Cumulus in WRF Parameterizations Evaluated against LASSO Large-Eddy Simulations
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Weather Review"
DOI: 10.1175/mwr-d-18-0115.1
Abstract: Representation of shallow cumulus is a challenge for mesoscale numerical weather prediction models. These cloud fields have important effects on temperature, solar irradiance, convective initiation, and pollutant transport, among other processes. Recent improvements to physics… read more here.
Keywords: large eddy; eddy simulations; shallow cumulus; physics ... See more keywords