Zobrazeno 1 - 10
of 52 497
pro vyhledávání: '"large‐eddy simulations"'
Autor:
Hausmann, Max, van Wachem, Berend
In the present paper, we apply the framework of volume-filtering for particle-laden flows, to large eddy simulations (LES) of wall-bounded flows leading to a new perspective on wall-modeled LES (WMLES) that we refer to as volume-filtered WMLES (VF-WM
Externí odkaz:
http://arxiv.org/abs/2411.11600
Autor:
Sharifi, Mehran
Publikováno v:
J Math Techniques Comput Math, 3(10), 1-14 (2024)
The study of Large-Eddy Simulations (LES) in turbulent flows continues to be a critical area of research, particularly in understanding the behavior of small-scale turbulence structures and their impact on resolved scales. In this study, we focus on
Externí odkaz:
http://arxiv.org/abs/2410.16753
Autor:
Benjamin, Mark, Iaccarino, Gianluca
Data from direct numerical simulations of turbulent flows are commonly used to train neural network-based models as subgrid closures for large-eddy simulations; however, models with low a priori accuracy have been observed to fortuitously provide bet
Externí odkaz:
http://arxiv.org/abs/2408.17429
Autor:
Mole, Andrew, Laizet, Sylvain
Improving the power output from wind farms is vital in transitioning to renewable electricity generation. However, in wind farms, wind turbines often operate in the wake of other turbines, leading to a reduction in the wind speed and the resulting po
Externí odkaz:
http://arxiv.org/abs/2407.20832
An important parameter characterising the synchronisation of turbulent flows is the threshold coupling wavenumber. This study investigates the relationship between the threshold coupling wavenumber and the leading Lyapunov vector using large eddy sim
Externí odkaz:
http://arxiv.org/abs/2407.13081
The need for accurate and fast scale-resolving simulations of fluid flows, where turbulent dispersion is a crucial physical feature, is evident. Large-eddy simulations (LES) are computationally more affordable than direct numerical simulations, but t
Externí odkaz:
http://arxiv.org/abs/2407.11746
This article utilizes the Large-Eddy Simulation (LES) paradigm with a physics-based turbulence modeling approach, including a dynamic subgrid-scale model and an equilibrium wall model, to examine the flow over the NASA transonic Common Research Model
Externí odkaz:
http://arxiv.org/abs/2407.07180
Autor:
Lipatnikov, Andrei N.
The paper aims at assessing a hypothesis that resolution required to evaluate fuel consumption and heat release rates by directly (i.e., without a subgrid model of unresolved influence of small-scale turbulent eddies on the local flame) processing fi
Externí odkaz:
http://arxiv.org/abs/2408.07668
In this work, a non-equilibrium wall model is proposed for the prediction of turbulent flows experiencing adverse pressure gradients, including separated flow regimes. The mean-flow nonequilibrium is identified by comparing two characteristic velocit
Externí odkaz:
http://arxiv.org/abs/2407.11390