Results 21 to 30 of about 9,156,720 (351)

Linear instability of viscoelastic pipe flow [PDF]

open access: yesJournal of Fluid Mechanics, 2020
A modal stability analysis shows that pressure-driven pipe flow of an Oldroyd-B fluid is linearly unstable to axisymmetric perturbations, in stark contrast to its Newtonian counterpart which is linearly stable at all Reynolds numbers.
Indresh Chaudhary   +3 more
semanticscholar   +1 more source

Role of inertia for the rotation of a nearly spherical particle in a general linear flow. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2015
We analyze the angular dynamics of a neutrally buoyant, nearly spherical particle immersed in a steady general linear flow. The hydrodynamic torque acting on the particle is obtained by means of a reciprocal theorem, a regular perturbation theory ...
F. Candelier   +4 more
semanticscholar   +1 more source

Probabilistic data flow analysis: a linear equational approach [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
Speculative optimisation relies on the estimation of the probabilities that certain properties of the control flow are fulfilled. Concrete or estimated branch probabilities can be used for searching and constructing advantageous speculative and ...
Alessandra Di Pierro, Herbert Wiklicky
doaj   +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

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

Flow Analysis, Linearity, and PTIME [PDF]

open access: yes, 2008
Flow analysis is a ubiquitous and much-studied component of compiler technology---and its variations abound. Amongst the most well known is Shivers' 0CFA; however, the best known algorithm for 0CFA requires time cubic in the size of the analyzed program and is unlikely to be improved.
David Van Horn, Harry G. Mairson
openaire   +3 more sources

Wrinkling instability of vesicles in steady linear flow [PDF]

open access: yes, 2014
We present experimental observations and numerical simulations of a wrinkling instability that occurs at sufficiently high strain rates in the trembling regime of vesicle dynamics in steady linear flow. Spectral and statistical analysis of the data shows
Michael Levant   +3 more
semanticscholar   +1 more source

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

Linear stability of Hunt's flow [PDF]

open access: yesJournal of Fluid Mechanics, 2010
We analyse numerically the linear stability of the fully developed flow of a liquid metal in a square duct subject to a transverse magnetic field. The walls of the duct perpendicular to the magnetic field are perfectly conducting whereas the parallel ones are insulating.
Sergei Molokov   +2 more
openaire   +3 more sources

Characteristic spatial scale of vesicle pair interactions in a plane linear flow. [PDF]

open access: yesPhysical review. E, Statistical, nonlinear, and soft matter physics, 2011
We report the experimental studies on interaction of two vesicles trapped in a microfluidic four-roll mill, where a plane linear flow is realized. We found that the dynamics of a vesicle in tank-treading motion is significantly altered by the presence of
Michael Levant   +3 more
semanticscholar   +1 more source

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