Results 21 to 30 of about 823 (174)

On the Equilibria of the Extended Nematic Polymers under Elongational Flow

open access: yesAbstract and Applied Analysis, 2007
We classify the equilibrium solutions of the Smoluchowski equation for dipolar (extended) rigid nematic polymers under imposed elongational flow. The Smoluchowski equation couples the Maier-Saupe short-range interaction, dipole-dipole interaction, and an
Hong Zhou, Lynda Wilson, Hongyun Wang
doaj   +1 more source

(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

Numerical study of eddy current by Finite Element Method for cracks detection in structures [PDF]

open access: yesFracture and Structural Integrity, 2017
In this paper, we try to use the finite element method of 2-D axisymmetry to solve problems in eddy current testing problems where the main idea is detecting crack's shape using the NDT-EC.
S. Harzallah, M. Chabaat, K. Chabane
doaj   +1 more source

Conception of a compact flow boiling loop for the International Space Station- First results in parabolic flights

open access: yesComptes Rendus. Mécanique, 2023
The design of a pipe flow boiling experiment for the International Space Station is proposed, taking into account typical weight, power consumption and size constraints. The effect of singularities such as elbows upstream the test section is investigated.
Chorin, Paul   +8 more
doaj   +1 more source

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

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

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

Measuring non-axisymmetry in spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1997
We present a method for measuring small deviations from axisymmetry of the potential of a filled gas disk. The method is based on a higher order harmonic expansion of the full velocity field of the disk. This expansion is made by first fitting a tilted-ring model to the velocity field of the gas disk and subsequently expanding the velocity field along ...
Schoenmakers, R.H.M.   +2 more
openaire   +3 more sources

PT-axisymmetry for extraordinary field confinement [PDF]

open access: yesSPIE Proceedings, 2017
Optical Parity-Time (PT-) symmetric systems support unusual properties when the symmetric coupling between internal modes is broken. We propose a new class of quasiperiodic PT-axisymmetric systems which lead to a simultaneous extraordinary field enhancement and localization at the symmetry center.
Botey Cumella, Muriel   +3 more
openaire   +2 more sources

The far-ultraviolet main auroral emission at Jupiter – Part 1: Dawn–dusk brightness asymmetries [PDF]

open access: yesAnnales Geophysicae, 2015
The main auroral emission at Jupiter generally appears as a quasi-closed curtain centered around the magnetic pole. This auroral feature, which accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range, is ...
B. Bonfond   +10 more
doaj   +1 more source

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