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pro vyhledávání: '"Henningson, A"'
Autor:
Henningson, Måns
We consider the classical field theory of 2+1-dimensional Yang-Mills-Chern-Simons theory on an arbitrary spatial manifold. We first define a gauge covariant transverse electric field strength, which together with the gauge covariant scalar magnetic f
Externí odkaz:
http://arxiv.org/abs/2406.02132
Under action of free-stream turbulence (FST), elongated streamwise streaky structures are generated inside the boundary layer, and their amplitude and wavelength are crucial for the transition onset. While turbulence intensity is strongly correlated
Externí odkaz:
http://arxiv.org/abs/2403.08543
Publikováno v:
Journal of Fluid Mechanics. 2024;979:A31
Large-eddy simulations of a flat-plate boundary layer, without a leading edge, subject to multiple levels of incoming free stream turbulence are considered in the present work. Within an input-output model where non-linear terms of the incompressible
Externí odkaz:
http://arxiv.org/abs/2402.10306
Autor:
Måns Henningson
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-13 (2024)
Abstract We consider the classical field theory of 2+1-dimensional Yang-Mills-Chern-Simons theory on an arbitrary spatial manifold. We first define a gauge covariant transverse electric field strength, which together with the gauge covariant scalar m
Externí odkaz:
https://doaj.org/article/7e553df0516241a7ae00dee6e5a37f4b
Laminar-turbulent transition on a rotating wind turbine blade at a chord Reynolds number of $1 \times 10^5$ and varying angles of attack ($AoA$) is studied with direct numerical simulations and linear stability theory. The rotation effects depend on
Externí odkaz:
http://arxiv.org/abs/2307.16494
In the context of linear stability analysis, considering unsteady base flows is notoriously difficult. A generalisation of modal linear stability analysis, allowing for arbitrarily unsteady base flows over a finite time, is therefore required. The re
Externí odkaz:
http://arxiv.org/abs/2306.08995
Publikováno v:
AIAA Journal (2023)
Two configurations typical of fixed-wing aircraft are simulated with the actuator line method (ALM): a wing with winglets and a T-tail. The ALM is extensively used in rotor simulations to model the blades by body forces, which are calculated from air
Externí odkaz:
http://arxiv.org/abs/2209.00096
The actuator line method (ALM) is extensively used in wind turbine and rotor simulations. However, its original uncorrected formulation overestimates the forces near the tip of the blades and does not reproduce well forces on translating wings. The r
Externí odkaz:
http://arxiv.org/abs/2206.05448
Publikováno v:
Physics of Fluids 34, 074106 (2022)
Floating offshore wind turbines (FOWTs) are subjected to platform motion induced by wind and wave loads. The oscillatory movement trigger vortex instabilities, modifying the wake structure, influencing the flow reaching downstream wind turbines. In t
Externí odkaz:
http://arxiv.org/abs/2203.11803
Publikováno v:
Proc. R. Soc. A. 478: 20220165 (2022)
The use of the complex velocity potential and the complex velocity is widely disseminated in the study of two-dimensional incompressible potential flows. The advantages of working with complex analytical functions made this representation of the flow
Externí odkaz:
http://arxiv.org/abs/2203.05857