Results 31 to 40 of about 196,589 (289)

VORTEX DEVICES OF THE DIESEL AIR SUPPLY SYSTEM: MATHEMATICAL MODEL OF AERODYNAMIC PROCESSES

Вестник СибАДИ, 2020
Introduction. The calculation of effective indicators of the vortex ejector used in the diesel air supply system is a pressing task as it allows significantly reducing time for determination of rational design parameters at the design stage.
R. V. Yakimushkin
doaj   +1 more source

Dynamics of coreless vortices and rotation-induced dissipation peak in superfluid films on rotating porous substrates

, 2007
We analyze dynamics of 3D coreless vortices in superfluid films covering porous substrates. The 3D vortex dynamics is derived from the 2D dynamics of the film.
E. B. Sonin, E. B. Sonin, K. A. Gillis, S. Q. Murphy, Sergey K. Nemirovskii   +4 more
core   +1 more source

Geometric Characterization of Atmospheric Islands Formed by Two Point Vortices

Axioms
Generically, 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

Fundamental vortices, wall-crossing, and particle-vortex duality

Journal of High Energy Physics, 2017
We explore 1d vortex dynamics of 3d supersymmetric Yang-Mills theories, as inferred from factorization of exact partition functions. Under Seiberg-like dualities, the 3d partition function must remain invariant, yet it is not a priori clear what should ...
Chiung Hwang, Piljin Yi, Yutaka Yoshida
doaj   +1 more source

Suppression of Kelvon-induced decay of quantized vortices in oblate Bose-Einstein Condensates

, 2011
We study the Kelvin mode excitations on a vortex line in a three-dimensional trapped Bose-Einstein condensate at finite temperature. Our stochastic Gross-Pitaevskii simulations show that the activation of these modes can be suppressed by tightening the ...
A. S. Bradley, B. P. Anderson, H. Schmidt, P. B. Blakie, S. J. Rooney, W. Thompson (Lord Kelvin)   +5 more
core   +1 more source

Direct numerical simulations of vortex rings at ReΓ = 7500 [PDF]

, 2007
We present direct numerical simulations of the turbulent decay of vortex rings with ReΓ = 7500. We analyse the vortex dynamics during the nonlinear stage of the instability along with the structure of the vortex wake during the turbulent stage.
Bergdorf, Michael, Koumoutsakos, Petros, Leonard, Anthony   +2 more
core   +1 more source

Numerical investigation of the collision of a vortex ring with a wavy sphere

Vietnam Journal of Science, Technology and Engineering
The numerical investigation of vortex dynamics resulting from the collision of a vortex ring with a wavy sphere of various wavenumbers (n) at a Reynolds number of 1000 was conducted using a developed remeshed vortex particle method. The influence of the
Nguyen Van Luc, Le Tuan Phuong Nam, Phan Toai Tuyn   +2 more
doaj   +1 more source

Langevin simulations of the out-of-equilibrium dynamics of the vortex glass in high-temperature superconductors

, 2006
We study the relaxation dynamics of flux lines in dirty high-temperature superconductors using numerical simulations of a London-Langevin model of the interacting vortex lines.
A. A. Abrikosov, A. Crisanti, A. I. Larkin, A. I. Larkin, A. J. Bray, A.-L. Barabási, C. J. Olson, Daniel Domínguez, E. Vincent, E. Zeldov, L. Bellon, L. F. Cugliandolo, Leticia F. Cugliandolo, M. Tinkham, P. G. De Gennes, Sebastian Bustingorry, T. Nattermann, V. Petäjä   +17 more
core   +2 more sources

Thermal dissipation in quantum turbulence

, 2006
The microscopic mechanism of thermal dissipation in quantum turbulence has been numerically studied by solving the coupled system involving the Gross-Pitaevskii equation and the Bogoliubov-de Gennes equation. At low temperatures, the obtained dissipation
H. E. Hall, H. E. Hall, J. R. Abo-Shaeer, J. T. Tough, Makoto Tsubota, Michikazu Kobayashi, N. N. Bogoliubov, P. G. de Gennes, R. J. Donnelly, U. Frisch, W. F. Vinen, W. F. Vinen, W. F. Vinen, W. H. Press   +13 more
core   +3 more sources

Vortex Dynamics Study of the Canard Deflection Angles’ Influence on the Sukhoi Su-30-Like Model to Improve Stall Delays at High AoA

Aerospace, 2019
The maneuverability of the Sukhoi Su-30 at very high angles of attack (AoA) was remarkably appealing. Canard angle, in cooperation with aircraft wing, created a flow pattern whereby, in that position, the fighter still had as much lifting force as ...
Sutrisno, Tri Agung Rohmat, Setyawan Bekti Wibowo, Sigit Iswahyudi   +3 more
doaj   +1 more source