Results 31 to 40 of about 14,504 (190)

Regular and Black Hole Skyrmions with Axisymmetry

open access: yesGeneral Relativity and Gravitation, 2004
It has been known that a B=2 skyrmion is axially symmetric. We consider the Skyrme model coupled to gravity and obtain static axially symmetric regular and black hole solutions numerically. Computing the energy density of the skyrmion, we discuss the effect of gravity to the energy density and baryon density of the skyrmion.
Sawado, Nobuyuki   +3 more
openaire   +3 more sources

A measure of axisymmetry for vortex rings [PDF]

open access: yesEuropean Journal of Mechanics - B/Fluids, 2015
Abstract There are many conditions in which a vortex ring deviates from axisymmetry. The shape of a three dimensional vortex ring represents the axisymmetry of propulsion, which has applications in animal locomotion (e.g., the free-swimming of a jellyfish), rocket and marine propulsion devices as well as blood flow through the heart valves.
Falahatpisheh, Ahmad, Kheradvar, Arash
openaire   +3 more sources

(Compactified) black branes in four dimensional f(R)-gravity

open access: yesPhysics Letters B, 2018
A new family of analytical solutions in a four dimensional static spacetime is presented for f(R)-gravity. In contrast to General Relativity, we find that a non trivial black brane/string solution is supported in vacuum power law f(R)-gravity for ...
N. Dimakis   +2 more
doaj   +1 more source

Influence of Metal Type on the Deep Drawing Force by Experimental and Finite Element Method [PDF]

open access: yesEngineering and Technology Journal, 2011
This paper is aimed to study the effect of material type on the drawing force. Three metals are used (low carbon steel 1008 AISI, Austenitic stainless steel 304 AISI, and pure aluminum 1100), as a sheet with thickness of 0.5mm for each one, and they were
Moneer H. Al-Saadi   +2 more
doaj   +1 more source

Measurement of non-axisymmetry in centres of advanced mergers of galaxies [PDF]

open access: yes, 2006
We measure the non-axisymmetry in the luminosity distribution in the inner few kpc of the remnants of advanced mergers of galaxies with a view to understand the relaxation in the central regions.
Jog, Chanda J., Maybhate, Aparna
core   +2 more sources

High-Reynolds-Number Flow past a Pipe

open access: yesJournal of Fluid Science and Technology, 2013
The present aim is to reveal the flow past a pipe which is immersed parallel to the mainstream at high Reynolds numbers. In a wind tunnel, we carry out (1) base-pressure measurements, (2) velocity-fluctuation measurements using a hot-wire anemometer and (
Katsuya HIRATA   +4 more
doaj   +1 more source

A Preliminary Study On The Inclination And Shape Of Jets Issuing From An Orifice In The Lateral Wall Of A Pipe [PDF]

open access: yesEPJ Web of Conferences, 2022
The topic of the behaviour of jets issuing from an orifice in the lateral wall of a pipe is of interest in many engineering fields, such as sea discharges of pollutants via submerged pipes, diffusers to mix different fluids in tanks and reactors, leakage
Ferrari Simone   +3 more
doaj   +1 more source

Spiral Thermal Plumes in Water under Conventional Heating: Numerical Results on the Effect of Rotation

open access: yesMathematics, 2022
In this paper, we study numerically the effect of rotation within a sample of water in a cylindrical container subject to rotation which is heated with a constant temperature at the bottom and lateral wall. We analyze the temporal behavior of temperature
María Cruz Navarro   +2 more
doaj   +1 more source

Spontaneously axisymmetry breaking phase in a binary mixture of spinor Bose-Einstein condensates

open access: yes, 2010
We study the ground state phases for a mixture of two atomic spin-1 Bose-Einstein condensates (BECs) in the presence of a weak magnetic (B-) field. The ground state is found to contain a broken-axisymmetry (BA) phase due to competitions among intra- and ...
Lü, R., Mei, J. W., Xu, Z. F., You, L.
core   +1 more source

On the axisymmetry of annular jet instabilities [PDF]

open access: yesJournal of Fluid Mechanics, 2003
We implement a linear stability analysis for the viscous annular jet surrounded by inviscid motionless gas subject to three-dimensional disturbances, and an analytical dispersion relation is presented. With this relation, we are able to obtain evidence that the axisymmetric mode is the most unstable mode of the system. The evidence for general cases is
Chen, Falin   +3 more
openaire   +3 more sources

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