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Viscous fingering instability

Effects of viscous dissipation on miscible thermo viscous fingering instability in porous media

Effects of viscous dissipation on miscible thermo viscous fingering instability in porous media

... thermo-viscous fingering instability associated with miscible displacement through a porous medium is studied numerically, motivated by applications in upstream oil industries especially enhanced oil ...

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Immiscible thermo viscous fingering in Hele Shaw cells

Immiscible thermo viscous fingering in Hele Shaw cells

... the viscous fingering ...the fingering evolution, with classical viscous fingering dynamics eventually dominating the ...thermo-viscous fingering regime, providing the ...

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Online Full Text

Online Full Text

... Abstract—The viscous fingering instability of miscible flow displacements in a homogeneous porous media is examined in the case involving reversible chemical reactions between the ...of ...

6

Characterizing water fingering phenomena in soils using magnetic resonance imaging and multifractal theory

Characterizing water fingering phenomena in soils using magnetic resonance imaging and multifractal theory

... ior of the areas where water is present (positive q ’s). The asymmetry toward the right from α=2 indicates domination of small or extremely small values of water. This is an indica- tion of the existence of preference ...

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Gravitational Instability of a Two Component Rotating
Viscous Plasma under the Effect of Arbitrary Radiative
Heat-Loss Functions and Electron Inertia

Gravitational Instability of a Two Component Rotating Viscous Plasma under the Effect of Arbitrary Radiative Heat-Loss Functions and Electron Inertia

... thermal instability arising due to heat-loss mechanisms in a dilute plasma has been studied by several ...thermal instability in the formation of condensations like galaxies, solar prominences and planetary ...

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Detecting fingering of overblown flute sound using sparse feature learning

Detecting fingering of overblown flute sound using sparse feature learning

... overblown fingering cases such as octave-related to non-octave-related fingerings and “few keys chan- ging” to “many keys changing” positions, as illustrated in Table ...each fingering without vibrato, ...

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Development of a Advanced Computerised Biometric Attendance Logging System for
Institutions of Higher Learning

Development of a Advanced Computerised Biometric Attendance Logging System for Institutions of Higher Learning

... With the great advancement in technology, many electronic attendance management systems have been emerged and help to increase organizations’ productivity and make administrators’ life easy. The main purpose of this ...

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Development of tip-splitting and side-branching patterns in elastic fingering

Development of tip-splitting and side-branching patterns in elastic fingering

... Elastic fingering supplements the already interesting features of the traditional viscous finger- ing phenomena in Hele-Shaw cells with the consideration that the two-fluid separating boundary behaves like ...

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Jeans Instability of Rotating Viscous Molecular Cloud of
Quantum Plasma under the Effect of
Black-Body Radiation

Jeans Instability of Rotating Viscous Molecular Cloud of Quantum Plasma under the Effect of Black-Body Radiation

... Jeans instability of self-gravitating astrophysical quantum dusty plasma has been investigated by Shukla and Stenflo 6 ...Jeans instability in homogeneous quantum dusty plasma in the presence of a magnetic ...

6

Oxidation-Mediated Fingering in Liquid Metals

Oxidation-Mediated Fingering in Liquid Metals

... As E increases above approximately 0.8 V [19,22], the oxidation lowers γ (and therefore P L ) to the point where an equilibrium shape is no longer possible, and the droplet spreads from a spherical cap into a flatter ...

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Thermal Instability of a Homogeneous Viscous Magnetized
Rotating Plasma under the Effects of Finite Electron Inertia
and Fine Dust particles

Thermal Instability of a Homogeneous Viscous Magnetized Rotating Plasma under the Effects of Finite Electron Inertia and Fine Dust particles

... The dispersion relation 15 shows the combined influence of fine dust particles thermal conductivity, finite electron inertia, magnetic field, viscosity and rotation of the self-gravitational instability of a homo- ...

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Carnivalesque expressions in musical composition: a Colombian perspective - volume 1: analytical commentary; volume 2: portfolio

Carnivalesque expressions in musical composition: a Colombian perspective - volume 1: analytical commentary; volume 2: portfolio

... In this effect, the flutist not only articulates the requested sound or syllable, but always provides enough air to create a resonance in the flute. For this reason the interior of the mouth should remain open. The ...

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Multi-wavelength studies of non-magnetic cataclysmic variables

Multi-wavelength studies of non-magnetic cataclysmic variables

... an instability could ...local viscous heat generation is equal to the radiative cooling from the disk surface), a plot of the effective temperature ...this instability is ...

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Real-time software electric guitar audio transcription

Real-time software electric guitar audio transcription

... The test automation iterated through possible divisor values (see Equation 3.2) and con- fidence weightings. A larger divisor reduces the peak threshold, affecting the results of the polyphonic pitch detection algorithm ...

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SURVEY ON RELIABLE HIGH PERFORMANCE SUPER MULTIPLIER WITH ADAPTIVE HOLD LOGIC FOR AGING AWARENESS

SURVEY ON RELIABLE HIGH PERFORMANCE SUPER MULTIPLIER WITH ADAPTIVE HOLD LOGIC FOR AGING AWARENESS

... current, and reducing multiplier speed. A same phenomenon, Positive Bias Temperature Instability (PBTI), occurs when an nMOS transistor is under positive bias. So it degrades the speed of transistors and after a ...

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Slender-Body Hypervelocity Boundary-Layer Instability

Slender-Body Hypervelocity Boundary-Layer Instability

... and skin friction are several times higher when the boundary layer has transitioned from laminar to turbulent. The primary design implications are that the thermal pro- tection system must be more massive and the drag is ...

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Foam flow investigation in 3D printed porous media : fingering and gravitational effects

Foam flow investigation in 3D printed porous media : fingering and gravitational effects

... of fingering of high mobile gas into the foam bank and gravity segregation on fluids separation, we conducted experiments in horizontal and vertical orientations in a printed porous ...

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Reaction-induced porosity fingering : replacement dynamic and porosity evolution in the KBr-KCl system

Reaction-induced porosity fingering : replacement dynamic and porosity evolution in the KBr-KCl system

... dissolution (Szymczak and Ladd, 2009). Most experiments describe the phenomenon of the replacement but not the porosity evolution over time. Raufaste et al. (2010) showed for the first time that “cylinders” of elongated ...

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Finite Difference Method in Immiscible Double Phase Fluid Flow through Porous Media

Finite Difference Method in Immiscible Double Phase Fluid Flow through Porous Media

... ABSTRACT:The present paper deals with the problem to study the stabilization of instabilities (fingers) arising in the immiscible double phase fluid flow through porous media. It contains a numerical solution of a ...

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Collective instability and physics of the anomalous Doppler resonance in fusion plasmas

Collective instability and physics of the anomalous Doppler resonance in fusion plasmas

... this instability and its practical use as a two-stream amplifier was carried out in ...this instability has been known for a significant time, its properties are still an area of active research ...

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