Results 11 to 20 of about 3,143,739 (339)

Flow Cell Characterisation: Flow Visualisation, Pressure Drop and Mass Transport at 2D Electrodes in a Rectangular Channel [PDF]

open access: yes, 2020
The reaction environment in a C-Flow Lab 5 × 5® laboratory-scale electrochemical flow cell was characterised in terms of fluid flow, hydraulic pressure drop and space averaged mass transport coefficient. The cell was studied in flow-by configuration with
Arenas, Luis   +3 more
core   +1 more source

Observations of Reduced Electron Gyroscale Fluctuations in National Spherical Torus Experiment H-Mode Plasmas with Large E X B Flow Shear [PDF]

open access: yes, 2019
Electron gyroscale fluctuation measurements in National Spherical Torus Experiment H-mode plasmas with large toroidal rotation reveal fluctuations consistent with electron temperature gradient (ETG) turbulence.
Bell, RE   +11 more
core   +1 more source

An approximation of behind-casing hydraulic conductivity between layers from transient pressure analysis

open access: yesDyna, 2019
Flow behind the casing has normally been identified and quantified using production logging tools. Very few applications of pressure transient analysis, which is much cheaper, have been devoted to determining compromised cemented zones.
Freddy Humberto Escobar   +2 more
doaj   +1 more source

Linear Instability of Turbulent Channel Flow

open access: yesPhysical Review Letters, 2022
Laminar-turbulent pattern formation is a distinctive feature of the intermittency regime in subcritical plane shear flows. By performing extensive numerical simulations of the plane channel flow, we show that the pattern emerges from a spatial modulation of the turbulent flow, due to a linear instability.
Pavan V. Kashyap   +2 more
openaire   +3 more sources

Linear-Time FPT Algorithms via Network Flow [PDF]

open access: yes, 2013
In the area of parameterized complexity, to cope with NP-Hard problems, we introduce a parameter k besides the input size n, and we aim to design algorithms (called FPT algorithms) that run in O(f(k)n^d) time for some function f(k) and constant d. Though
Iwata, Yoichi   +2 more
core   +1 more source

Analysis of pressure and pressure derivative interference tests under linear and spherical flow conditions

open access: yesDyna, 2018
Often, interpretation of interference tests is performed for systems acting under radial flow regimen conditions by means of conventional straight-line method, type-curve matching and TDS technique. For linear and spherical flow cases, the interpretation
Freddy Humberto Escobar-Macualo   +2 more
doaj   +1 more source

Lipschitz conjugacy of linear flows [PDF]

open access: yesJournal of the London Mathematical Society, 2009
In this paper, we characterize Lipschitz conjugacy of linear flows on Rd algebraically. We show that two hyperbolic linear flows are Lipschitz conjugate if and only if the Jordan forms of the system matrices are the same except for the simple Jordan blocks where the imaginary parts of the eigenvalues may differ.
Kawan, Christoph, Stender, Torben
openaire   +1 more source

Resonant Kelvin-Helmholtz modes in sheared relativistic flows [PDF]

open access: yes, 2007
Qualitatively new aspects of the (linear and non-linear) stability of sheared relativistic (slab) jets are analyzed. The linear problem has been solved for a wide range of jet models well inside the ultrarelativistic domain (flow Lorentz factors up to 20;
A. Celotti   +21 more
core   +2 more sources

Adaptive linear solution process for single-phase Darcy flow

open access: yesOil & Gas Science and Technology, 2020
This article presents an adaptive approach for solving linear systems arising from self-adjoint Partial Differential Equations (PDE) problems discretized by cell-centered finite volume method and stemming from single-phase flow simulations. This approach
Anciaux-Sedrakian Ani   +3 more
doaj   +1 more source

Quasi Linear Flows on Tori:�Regularity of their Linearization [PDF]

open access: yesCommunications in Mathematical Physics, 1998
Under suitable conditions a flow on a torus $C^{(p)}$--close, with $p$ large enough, to a quasi periodic diophantine rotation is shown to be conjugated to the quasi periodic rotation by a map that is analytic in the perturbation size. This result is parallel to Moser's theorem stating conjugability in class $C^{(p')}$ for some $p'
BONETTO F.   +3 more
openaire   +3 more sources

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