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pro vyhledávání: '"Young, William P."'
Ocean turbulence at meso- and submesocales affects the propagation of surface waves through refraction and scattering, inducing spatial modulations in significant wave height (SWH). We develop a theoretical framework that relates these modulations to
Externí odkaz:
http://arxiv.org/abs/2402.05652
Publikováno v:
Journal of Fluid Mechanics , Volume 975 , 25 November 2023 , A1
The refraction of surface gravity waves by currents leads to spatial modulations in the wave field and, in particular, in the significant wave height. We examine this phenomenon in the case of waves scattered by a localised current feature, assuming
Externí odkaz:
http://arxiv.org/abs/2305.12163
We report a numerical study of horizontal convection (HC) at Prandtl number $Pr = 1$, with both no-slip and free-slip boundary conditions. We obtain 2D and 3D solutions and determine the relation between the Rayleigh number $Ra$ and the Nusselt numbe
Externí odkaz:
http://arxiv.org/abs/2301.03122
Publikováno v:
Journal of Mathematical Biology (2024)
The coexistence of multiple phytoplankton species despite their reliance on similar resources is often explained with mean-field models assuming mixed populations. In reality, observations of phytoplankton indicate spatial aggregation at all scales,
Externí odkaz:
http://arxiv.org/abs/2210.11364
Autor:
Young, William D.
Publikováno v:
EPTCS 359, 2022, pp. 83-98
The theory of asymptotic complexity provides an approach to characterizing the behavior of programs in terms of bounds on the number of computational steps executed or use of computational resources. We describe work using ACL2 to prove complexity pr
Externí odkaz:
http://arxiv.org/abs/2205.11700
Freezing of Gait (FOG) is one of the most debilitating symptoms of Parkinson's Disease and is associated with falls and loss of independence. The patho-physiological mechanisms underpinning FOG are currently poorly understood. In this paper we combin
Externí odkaz:
http://arxiv.org/abs/2203.08724
Autor:
Vanneste, Jacques, Young, William R.
The Stokes velocity $\mathbf{u}^\mathrm{S}$, defined approximately by Stokes (1847, Trans. Camb. Philos. Soc., 8, 441-455), and exactly via the Generalized Lagrangian Mean, is divergent even in an incompressible fluid. We show that the Stokes velocit
Externí odkaz:
http://arxiv.org/abs/2202.11405
Anticyclonic vortices focus and trap near-inertial waves so that near-inertial energy levels are elevated within the vortex core. Some aspects of this process, including the nonlinear modification of the vortex by the wave, are explained by the exist
Externí odkaz:
http://arxiv.org/abs/2010.08656
Autor:
Jelinek, Bohumir, Young, William J., Dantin, Matthew, Furr, William, Doude, Haley, Priddy, Matthew W.
Publikováno v:
Journal of Manufacturing Processes (2020), vol. 57, pp. 187-195
An open source two-dimensional (2D) thermal finite element (FE) model of the Directed Energy Deposition (DED) process is developed using the Python-based FEniCS framework. The model incrementally deposits material ahead of the laser focus point accor
Externí odkaz:
http://arxiv.org/abs/2007.01433