Results 31 to 40 of about 471 (203)
The subgrid-scale modeling of compressible turbulence [PDF]
The Physics of Fluids, 1988 A subgrid-scale model recently derived by Yoshizawa [Phys. Fluids 29, 2152 (1986)] for use in the large-eddy simulation of compressible turbulent flows is examined from a fundamental theoretical and computational standpoint. It is demonstrated that this model, which is only applicable to compressible turbulent flows in the limit of small density ...
C. G. Speziale +3 more
openaire +1 more source
Subgrid spatial variability of soil hydraulic functions for hydrological modelling [PDF]
Hydrology and Earth System Sciences, 2016 State-of-the-art hydrological applications require a process-based, spatially distributed hydrological model. Runoff characteristics are demanded to be well reproduced by the model.
P. Kreye, G. Meon
doaj +1 more source
A generalized formulation of the dynamic Smagorinsky model
Meteorologische 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
Large Eddy Simulation of Combustion for High-Speed Airbreathing Engines
Aerospace, 2022 Large Eddy Simulation (LES) has rapidly developed into a powerful computational methodology for fluid dynamic studies, between Reynolds-Averaged Navier–Stokes (RANS) and Direct Numerical Simulation (DNS) in both accuracy and cost.
Christer Fureby +3 more
doaj +1 more source
Tellus: Series A, Dynamic Meteorology and Oceanography, 2017 In this paper, we explore a dynamical formulation allowing to assimilate high-resolution data in a large-scale fluid flow model. This large-scale formulation relies on a random modelling of the small-scale velocity component and allows to take into ...
Yin Yang, Etienne Mémin
doaj +1 more source
Fire, 2023 An assessment of the performance of FireFOAM in simulating a large-scale compartment fire scenario is presented in this study, using the Edinburgh Tall Building Fire Test I (2017) as the basis for evaluation.
Wolfram Jahn +4 more
doaj +1 more source
Pan-Antarctic map of near-surface permafrost temperatures at 1 km2 scale [PDF]
The Cryosphere, 2020 Permafrost is present within almost all of the Antarctic's ice-free areas, but little is known about spatial variations in permafrost temperatures except for a few areas with established ground temperature measurements.
J. Obu +9 more
doaj +1 more source
A comparison of different solutions for the Dynamic Smagorinsky Model applied in a GCM
Meteorologische Zeitschrift, 2018 A discussion of different approaches and solutions of the basic tensor equation within the Dynamic Smagorinsky Model (DSM) suitable for General Circulation Models (GCM) is presented.
Urs Schaefer-Rolffs
doaj +1 more source
Hectometric-scale simulations of a Mediterranean heavy-precipitation event during the Hydrological cycle in the Mediterranean Experiment (HyMeX) first Special Observation Period (SOP1) [PDF]
Atmospheric Chemistry and Physics, 2020 Offshore convection occurred over the Mediterranean sea on 26 October 2012 and was well documented during the first Special Observation Period (SOP1) of the Hydrological cycle in the Mediterranean Experiment (HyMeX).
O. Nuissier +4 more
doaj +1 more source
Implicit subgrid‐scale modeling by adaptive local deconvolution [PDF]
PAMM, 2004 AbstractA class of implicit Subgrid‐Scale (SGS) models for Large‐Eddy Simulation (LES) is obtained from a new approach for the finite‐volume discretization of hyperbolic conservation laws. The extension of a standard deconvolution operator and the choice of a suitable numerical flux function result in a truncation error which can be forced to have ...
Hickel, Stefan, Adams, Nikolaus A.
openaire +2 more sources