Results 31 to 40 of about 5,354,092 (327)

Effects of normal viscous stresses on radial viscous fingering [PDF]

open access: yesPhysical Review E, 2009
We revisit the radial viscous fingering problem in a Hele-Shaw cell, and consider the action of viscous stresses originated from velocity gradients normal to the fluid-fluid interface. The evolution of the interface during linear and weakly nonlinear stages is described analytically through a mode-coupling approach.
Gadelha, H., Miranda, J. A.
openaire   +3 more sources

Non-Oberbeck-Boussinesq zonal flow generation [PDF]

open access: yes, 2018
Novel mechanisms for zonal flow (ZF) generation for both large relative density fluctuations and background density gradients are presented. In this non-Oberbeck-Boussinesq (NOB) regime ZFs are driven by the Favre stress, the large fluctuation extension ...
Held, Markus   +3 more
core   +3 more sources

Up-pulling force analysis for ESC hollow cylindrical casting [PDF]

open access: yesChina Foundry, 2020
Electroslag casting (ESC) is an important method to produce high quality castings. In this study, the ESC up-pulling inner mold method (EUPIM) was used to produce hollow cylindrical castings with the multiple consumable electrodes. The radial deformation,
An-guo Wang   +2 more
doaj   +1 more source

Theoretical and experimental investigation on fracture response of coal impacted by high-velocity water jet

open access: yesEnergy Reports, 2021
This paper adopted theoretical derivation and experiments to investigate the stress wave propagation characteristics in rock under water jet impact and fracture response of coal. The evolution model of stress and displacement was presented to analyze the
Songqiang Xiao   +6 more
doaj   +1 more source

Hadamard Renormalisation of the Stress Energy Tensor on the Horizons of a Spherically Symmetric Black Hole Space-Time [PDF]

open access: yes, 2012
We consider a quantum field which is in a Hartle-Hawking state propagating in a general spherically symmetric black hole space-time. We make use of uniform approximations to the radial equation to calculate the components of the stress tensor ...
Breen, Cormac, Ottewill, Adrian C.
core   +3 more sources

Calculation and analysis of ampacity and stress of overhead transmission line

open access: yesAIP Advances, 2022
To ensure the safe operation of a transmission line, it is necessary to study the radial temperature rise and the stress and strain distribution of the transmission line under on-load state.
Junhui Li   +4 more
doaj   +1 more source

Spontaneous curvature cancellation in forced thin sheets

open access: yes, 2006
In this paper we report numerically observed spontaneous vanishing of mean curvature on a developable cone made by pushing a thin elastic sheet into a circular container.
C. Isenberg   +6 more
core   +1 more source

The influence of anisotropic growth and geometry on the stress of solid tumors [PDF]

open access: yes, 2017
Solid stresses can affect tumor patho-physiology in at least two ways: directly, by compressing cancer and stromal cells, and indirectly, by deforming blood and lymphatic vessels.
Bravo-Castillero, Julián   +9 more
core   +1 more source

Radial solitons in armchair carbon nanotubes

open access: yes, 2004
Radial solitons are investigated in armchair carbon nanotubes using a generalized Lennard-Jones potential. The radial solitons are found in terms of moving kink defects whose velocity obeys a dispersion relation.
235   +34 more
core   +2 more sources

Numerical Simulation on Radial Well Deflagration Fracturing Based on Phase Field Method

open access: yesEnergies, 2023
A radial well has a unique wellbore configuration. Fracture propagation in radial well deflagration fracturing is studied rarely. The mechanism of interaction between deflagration fractures, natural fractures, and micro-fractures is still unknown.
Diguang Gong   +5 more
doaj   +1 more source

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