Results 41 to 50 of about 16,913 (164)

Observational features of thin accretion disk around rotating regular black hole

open access: yesEuropean Physical Journal C: Particles and Fields
Rotating regular black hole, as a promising extension beyond general relativity, offer a phenomenological model that resolves spacetime singularities.
Zhen Li
doaj   +1 more source

Vibration of imperfect rotating disk

open access: yesApplied and Computational Mechanics, 2011
This study is concerned with the theoretical and numerical calculations of the flexural vibrations of a bladed disk. The main focus of this study is to elaborate the basic background for diagnostic and identification methods for ascertaining the main ...
Půst L., Pešek L.
doaj  

Periodical structure of vortices in a semiconductor single wafer spin cleaner

open access: yesNihon Kikai Gakkai ronbunshu, 2015
We experimentally and numerically investigated large-scale structures formed by vortices in a single wafer spin cleaner. The Q-criterion identified the vortices developed in the cleaner as the flow regions with positive second invariant of the velocity ...
Toshinori KOUCHI   +5 more
doaj   +1 more source

Relativistic disks - I. Counter rotating disks [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1978
Lynden-Bell, D., Pineault, S.
openaire   +2 more sources

Counter-Rotation in Disk Galaxies

open access: yes, 2014
Counter-rotating galaxies host two components rotating in opposite directions with respect to each other. The kinematic and morphological properties of lenticulars and spirals hosting counter-rotating components are reviewed. Statistics of the counter-rotating galaxies and analysis of their stellar populations provide constraints on the formation ...
openaire   +3 more sources

Eigenfrequency sensitivity analysis of flexible rotors [PDF]

open access: yesApplied and Computational Mechanics, 2007
This paper deals with sensitivity analysis of eigenfrequencies from the viewpoint of design parameters. The sensitivity analysis is applied to a rotor which consists of a shaft and a disk. The design parameters of sensitivity analysis are the disk radius
Šašek J.
doaj  

Numerical simulation of turbulent flow between shrouded contra-rotating disks

open access: yesAdvances in Mechanical Engineering, 2016
The turbulent flow between shrouded contra-rotating disks was numerically studied with a two-layer turbulence model and a modified Launder–Sharma low-Reynolds number k - ε model.
Shu-Xian Chen   +3 more
doaj   +1 more source

Counter-rotating relativistic static thin disks

open access: yesRevista Integración, 2001
A detailed study of the Counter-Rotating Model (CRM) for generic fi-nite static axially symmetric thin disks with nonzero radial pressure is presented.
Omar A. Espitia, Guillermo A. González
doaj  

Thin accretion disk around rotating hairy black hole: radiative property and optical appearance

open access: yesEuropean Physical Journal C: Particles and Fields
The gravitational decoupling method systematically generates hairy modifications to the solutions in general relativity due to new gravitational sources.
Zhen Li, Xiao-Kan Guo
doaj   +1 more source

Basic Generic Properties of Regular Rotating Black Holes and Solitons

open access: yesAdvances in Mathematical Physics, 2017
We present a systematic description of the basic generic properties of regular rotating black holes and solitons (compact nonsingular nondissipative objects without horizons related by self-interaction and replacing naked singularities). Rotating objects
Irina Dymnikova, Evgeny Galaktionov
doaj   +1 more source

Home - About - Disclaimer - Privacy