Results 261 to 270 of about 6,956 (299)

Wettability control on deformation: Coupled multiphase fluid and granular systems

Physical Review E, 2020
Understanding of multiphase flow in porous media is important for a wide range of applications such as soil science, environmental remediation, energy resources, and CO_{2} sequestration. This phenomenon depends on the complex interplay between the fluid and solid forces such as gravitational, capillary, and viscous forces, as well as wettability of ...
Tsimur Davydzenka, Samuel Fagbemi, Pejman Tahmasebi   +2 more
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Horns on diffusion paths in multiphase diffusion couples

Acta Materialia, 2006
Abstract The formation of “horns” on diffusion paths in two-phase diffusion couples having a common matrix phase is analyzed by considering the one-dimensional form of the diffusion equation. It is shown that horns occur when flux versus distance profiles have a finite slope at the initial diffusion couple interface.
K. Wu, J.E. Morral, Y. Wang
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Zigzag diffusion paths in multiphase diffusion couples

Acta Metallurgica et Materialia, 1994
Abstract The diffusion path in a multiphase diffusion couple is predicted to follow a zigzag course when the following conditions are met: the concentration differences between the diffusion couple alloys are small, the alloys contain the same phases, there is one more component in the alloys than the number of phases, and all diffusion takes place ...
William D. Hopfe, J.E. Morral
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Three-way coupling of multiphase flow and poromechanics in porous media

Journal of Computational Physics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xueying Lu, Mary F. Wheeler
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Iteratively Coupled Reservoir Simulation for Multiphase Flow

SPE Annual Technical Conference and Exhibition, 2007
Abstract FIM (Fully Implicit Method) and IMPES (Implicit Pressure Explicit Saturation) are two of the most commonly used time-stepping schemes in present reservoir simulation. However, neither of them satisfies the requirements of accuracy and efficiency with increasing size and degree of complexity of highly heterogeneous reservoirs. In
Bo Lu, Tareq Alshaalan, Mary Wheeler
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On Coupling CO2 Corrosion and Multiphase Flow Models

CORROSION 2003, 2003
Abstract Corrosion prediction in multiphase flow has been a challenging task in oil and gas industry for many years. Strictly speaking, the existing mechanistic CO2 corrosion models can only be used in single-phase flow. To add the capability of predicting corrosion in multiphase flow, the mass transfer and the turbulent diffusivity ...
Shihuai Wang, Srdjan Nesic
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Multisymplectic Relative Equilibria, Multiphase Wavetrains, and Coupled NLS Equations

Studies in Applied Mathematics, 2001
The article begins with a geometric formulation of two‐phase wavetrain solutions of coupled nonlinear Schrödinger equations. It is shown that these solutions come in natural four‐parameter families, associated with symmetry, and a geometric instability condition can be deduced from the parameter structure that generalizes Roskes' instability criterion.
Bridges, Thomas J., Laine-Pearson, Fiona E.   +1 more
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Multiphase Signal Generation Using Capacitive Coupling of LC-VCOs

2007 14th IEEE International Conference on Electronics, Circuits and Systems, 2007
A method for multiphase signal generation by means of coupling several identical cross-connected LC-VCOs via capacitors is presented. An analysis is presented which shows that there is a 180/N degrees phase difference between the outputs when N identical oscillators are coupled to each other.
Malihe Zarre Dooghabadi, Sasan Naseh
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Coupled Modeling of Borehole Instability and Multiphase Flow for Underbalanced Drilling

IADC/SPE Drilling Conference, 2002
Abstract Underbalanced drilling techniques have been applied to avoid or mitigate formation damage, reduce lost circulation risks, and increase the rate of penetration. However, drilling with a bottomhole pressure less than the formation pore pressure will usually increase the risk of borehole instability due to shear or tensile failure ...
C.D. Hawkes, S.P. Smith, P.J. McLellan
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Coupled Thermo- and Electrodynamics of Multiphasic Continua

2011
This chapter gives a compact overview of multi-phase continuum mechanics by recourse to the general concepts of mixture and porous media theories. Attention is focused on volumetrically coupled, multi-field formulations arising from the continuum mechanical treatment of multi-phase materials accounting for different physical phenomena. For this purpose,
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