Results 1 to 10 of about 44,330 (122)
The Co-Moving Velocity in Immiscible Two-Phase Flow in Porous Media
Transport in Porous Media, 2022 AbstractWe present a continuum (i.e., an effective) description of immiscible two-phase flow in porous media characterized by two fields, the pressure and the saturation. Gradients in these two fields are the driving forces that move the immiscible fluids around. The fluids are characterized by two seepage velocity fields, one for each fluid. Following
Santanu Sinha +2 more
exaly +3 more sources
The Impact of Wettability on the Co-Moving Velocity of Two-Fluid Flow in Porous Media
Transport in Porous MediaAbstractThe impact of wettability on the co-moving velocity of two-fluid flow in porous media is analyzed herein. The co-moving velocity, developed by Roy et al. (Front Phys 8:4, 2022), is a novel representation of the flow behavior of two fluids through porous media.
Ryan T Armstrong +2 more
exaly +3 more sources
A measurement of stellar surface gravity hidden in radial velocity differences of comoving stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT The gravitational redshift induced by stellar surface gravity is notoriously difficult to measure for non-degenerate stars, since its amplitude is small in comparison with the typical Doppler shift induced by stellar radial velocity.
Matthew Moschella +4 more
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Parameterizations of immiscible two-phase flow in porous media
Frontiers in Physics, 2023 A fundamental variable characterizing immiscible two-phase flow in porous media is the wetting saturation, which is the ratio between the pore volume filled with wetting fluid and the total pore volume. More generally, this variable comes from a specific
Håkon Pedersen, Alex Hansen
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Co-moving frame radiative transfer in spherical media with arbitrary velocity fields [PDF]
Astronomy & Astrophysics, 2004 Recently, with the advances in computational speed and availability there has been a growth in the number and resolution of fully 3-D hydrodynamical simulations. However, all of these simulations are purely hydrodynamical and there has been little attempt to include the effects of radiative transfer except in a purely phenomenological manner because ...
Baron, E., Hauschildt, Peter H.
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Dynamics of Kv1 channel transport in axons. [PDF]
PLoS ONE, 2010 Concerted actions of various ion channels that are precisely targeted along axons are crucial for action potential initiation and propagation, and neurotransmitter release. However, the dynamics of channel protein transport in axons remain unknown. Here,
Yuanzheng Gu, Chen Gu
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A spatial epidemic model with a moving boundary
Infectious Disease Modelling, 2021 We present a new mathematical model to investigate the spatial spread of an infectious disease. The model consists of a nonlinear PDE system with an unknown velocity field, defined on an epidemic domain that changes with time.
Qiao Zhuang, Jin Wang
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A 3D radiative transfer framework [PDF]
Astronomy & Astrophysics, 2012 9 pages, 9 figures, A&A, in press, new version matches copy edited version, definition ...
Baron, E. +3 more
openaire +2 more sources
Mechanism study of bubble dynamics under the buoyancy effects
Nuclear Analysis, 2023 The motion of a single bubble in a 2-D vertical channel filled with stagnant or moving fluid is simulated for various sets of conditions using the computational fluid dynamics(CFD) method. The volume of fluid (VOF) model is applied to track the interface
Shan-fang Huang
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Modeling CO Line Profiles in Shocks of W28 and IC 443
The Astrophysical Journal, 2023 Molecular emission arising from the interactions of supernova remnant (SNR) shock waves and molecular clouds provide a tool for studying the dispersion and compression that might kick-start star formation as well as understanding cosmic-ray production ...
Nguyen Fuda +2 more
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