Results 11 to 20 of about 21,860,116 (312)
On the Efficacy of Turbulence Modelling for Sloshing
Applied Sciences, 2022 As part of a wider project to understand the applicability of utilising slosh-based damping for wing-like structures, simulations of partially filled tanks subjected to harmonically oscillating and vertical motion are presented.
Omar Ahmed Mahfoze +4 more
doaj +4 more sources
On the Conservation of Turbulence Energy in Turbulence Transport Models [PDF]
The Astrophysical Journal, 2021 Zank et al. developed models describing the transport of low frequency incompressible and nearly incompressible turbulence in inhomogeneous flows. The formalism was based on expressing the fluctuating variables in terms of the Els\"assar variables and then taking "moments" subject to various closure hypotheses.
B.-B. Wang +3 more
arxiv +3 more sources
Symmetries and turbulence modeling [PDF]
Physics of Fluids, 2020 This work applies new insights into turbulent statistics gained by Lie symmetry analysis to the closure problem of turbulence. Founded in the mathematics of partial differential equations, Lie symmetries have helped advances in many fields of modern physics.
D. Klingenberg +2 more
openaire +4 more sources
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
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Generative modeling of turbulence
Physics of Fluids, 2022 We present a mathematically well-founded approach for the synthetic modeling of turbulent flows using generative adversarial networks (GAN). Based on the analysis of chaotic, deterministic systems in terms of ergodicity, we outline a mathematical proof that GAN can actually learn to sample state snapshots from the invariant measure of the chaotic ...
C. Drygala +3 more
openaire +2 more sources
Spherical model for turbulence [PDF]
Physical Review Letters, 1993 A new set of models for homogeneous, isotropic turbulence is considered in which the Navier-Stokes equations for incompressible fluid flow are generalized to a set of N coupled equations in N velocity fields. It is argued that in order to be useful these models must embody a new group of symmetries, and a general formalism is laid out for their ...
Peter B. Weichman, Chung-Yu Mou
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Bilt-in turbulence modelling solution method
Известия высших учебных заведений: Проблемы энергетики, 2020 THE PURPOSE. The aim of the work is to find a method for mathematical modeling and analysis of inhomogeneous physical fields and the influence of internal structures on these fields.
L. E. Melamed
doaj +1 more source
A Generalization of Scaling Models of Turbulence [PDF]
Journal of Statistical Physics, 2011 8 ...
Joachim Peinke, Ch. Renner
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A kinetic model of plasma turbulence [PDF]
Journal of Plasma Physics, 2014 A Hybrid Vlasov–Maxwell (HVM) model is presented and recent results about the link between kinetic effects and turbulence are reviewed. Using five-dimensional (2D in space and 3D in the velocity space) simulations of plasma turbulence, it is found that kinetic effects (or non-fluid effects) manifest through the deformation of the proton velocity ...
SERVIDIO, SERGIO +6 more
openaire +5 more sources
Frontiers in Marine Science, 2023 Ship-related energy pollution has received increasing attention but almost exclusively regarding radiated underwater noise, while the effect of ship-induced turbulence is lacking in the literature.
Amanda T. Nylund +7 more
doaj +1 more source