Results 31 to 40 of about 4,674,421 (280)
Discussion about the characteristics of flow in atmospheric airflow field using the complex function
Atmospheric and Oceanic Science Letters, 2018 Different levels of fluctuation occur when airflow passes over different terrain. It is important for weather and climate change, as well as aviation and glider safety, to study the motion of airflow. Based on conformal mapping and the complex potential,
Yu WANG, Si-Xun HUANG
doaj +1 more source
Vortex scattering in the point vortex model [PDF]
, 2019 Here we provide both a theoretical and numerical analysis of scattering in vortex collisionsusing the 2-D point vortex model, where both the dipole-vortex collision is considered in the three vortex case, and the dipole-dipole collision is considered in the four vortex case.
openaire +1 more source
Classical dynamics of vortex solitons from perturbative scattering amplitudes
Journal of High Energy Physics, 2023 We introduce a novel point-particle effective description of ANO vortex solitons in the critical Abelian Higgs Model (AHM) in d = 2 + 1 based on the small winding expansion.
Callum R. T. Jones
doaj +1 more source
Alexandria Engineering Journal, 2020 In this investigation, experimental and computational fluid dynamics (CFD) technique is used to study a newly designed Ranque-Hilsch vortex tube (RHVT), such as a convergent-divergent one.
Lizan Mahmood Khorsheed Zangana +1 more
doaj +1 more source
Discrete-time Point Vortex Dynamics
Journal of Optimization, Differential Equations and Their ApplicationsThe paper examines a difference equation, analogous to the Helmholtz equation, which describes the point vortex dynamics on a plane under control. The dependence of the asymptotic behaviour of the moment of vorticity of a system of point vortices on the ...
Iryna I. Nishchenko +1 more
doaj +1 more source
Aerospace, 2023 Based on the adjoint method, the afterbody of a military transport aircraft was optimized and designed to meet engineering constraints under real flight conditions.
Hanyue Rao +4 more
doaj +1 more source
Statistics and dynamics of blockings with a point vortex model
Tellus: Series A, Dynamic Meteorology and Oceanography, 2018 We investigate a reduced point vortex model for statistical and dynamical analyses of atmospheric blocking phenomena. Thereby, we consider High-over-low and Omega blocking as relative equilibria of two and three point vortices.
Mirjam Hirt +3 more
doaj +1 more source
Vortex Structure and Kinematics of Encased Axial Turbomachines
International Journal of Turbomachinery, Propulsion and Power, 2018 This paper models the kinematics of the vortex system of an encased axial turbomachine at part load and overload applying analytical methods. Thus far, the influence of the casing and the tip clearance on the kinematics have been solved separately.
Peter F. Pelz +2 more
doaj +1 more source
Geometric Characterization of Atmospheric Islands Formed by Two Point Vortices
AxiomsGenerically, in a system with more than three point vortices, there exist regions of stability around each vortex, even if the system is chaotic. These regions are usually called stability islands, and they have a morphology that is hard to characterize.
Gil Marques, Sílvio Gama
doaj +1 more source
Point vortex dynamics on Kähler twistor spaces
Journal of Mathematical Physics, 2023 In this paper, we provide tools to study the dynamics of point vortex dynamics on CPn and the flag manifold F1,2(C3). These are the only Kähler twistor spaces arising from four-manifolds. We give an explicit expression for Green’s function on CPn, which enables us to determine the Hamiltonian H and the equations of motions for the point vortex problem ...
S. Hohloch, G. Muarem
openaire +4 more sources