Results 11 to 20 of about 333,521 (317)

A survey of numerical schemes for transportation equation [PDF]

open access: yesE3S Web of Conferences, 2021
The convection-diffusion equation is a fundamental equation that exists widely. The convection-diffusion equation consists of two processes: diffusion and convection. The convection-diffusion equation can also be called drift-diffusion equaintion.
Yu Simin
doaj   +1 more source

Multivalent Diffusive Transport [PDF]

open access: yesThe Journal of Physical Chemistry B, 2021
We present here a model for multivalent diffusive transport whereby a central point-like hub is coupled to multiple feet, which bind to complementary sites on a two-dimensional landscape. The available number of binding interactions is dependent on the number of feet (multivalency), and on their allowed distance from the central hub (span). Using Monte
Antonia Kowalewski   +2 more
openaire   +3 more sources

Cross-diffusion systems with convective transport [PDF]

open access: yesE3S Web of Conferences, 2023
The properties of cross-diffusion systems, which have double nonlinearity and include convective transfer, are investigated. This means that two factors are taken into account in the system: diffusion (random movement) and convection (transfer with the ...
Muhamediyeva Dildora
doaj   +1 more source

Coupled model for contaminant diffusion, osmosis and consolidation in soil considering thermal effects

open access: yesYantu gongcheng xuebao, 2022
To explore the influences of temperature on pollutant transport, a coupled model for contaminant diffusion in soils, osmosis and consolidation considering the thermal effects is proposed to reflect the dynamic changes of physical properties of soils and ...
TIAN Gai-lei , ZHANG Zhi-hong
doaj   +1 more source

Modeling Long-Distance Forward and Backward Diffusion Processes in Tracer Transport Using the Fractional Laplacian on Bounded Domains

open access: yesFractal and Fractional, 2023
Recent studies have emphasized the importance of the long-distance diffusion model in characterizing tracer transport occurring within both subsurface and surface environments, particularly in heterogeneous systems.
Zhipeng Li   +5 more
doaj   +1 more source

Macroscopic water vapor diffusion is not enhanced in snow [PDF]

open access: yesThe Cryosphere, 2021
Water vapor transport in dry snowpacks plays a significant role for snow metamorphism and the mass and energy balance of snowpacks. The molecular diffusion of water vapor in the interstitial pores is usually considered to be the main or only transport ...
K. Fourteau   +3 more
doaj   +1 more source

Using the Després and Lagoutière (1999) antidiffusive transport scheme: a promising and novel method against excessive vertical diffusion in chemistry-transport models [PDF]

open access: yesGeoscientific Model Development, 2021
The potential of the antidiffusive transport scheme proposed by Després and Lagoutière (1999) for resolving vertical transport in chemistry-transport models is investigated in an idealized framework with very encouraging results.
S. Mailler   +5 more
doaj   +1 more source

Diffusion and laplacian transport [PDF]

open access: yesTheoretical and Mathematical Physics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baydoun, I., Zagrebnov, V. A.
openaire   +1 more source

Diffusion Transport Alignment

open access: yes, 2023
The integration of multimodal data presents a challenge in cases when the study of a given phenomena by different instruments or conditions generates distinct but related domains. Many existing data integration methods assume a known one-to-one correspondence between domains of the entire dataset, which may be unrealistic.
Andrés F. Duque   +2 more
openaire   +2 more sources

Measurement of Gas Diffusion Coefficient in Highly Permeable Porous Media

open access: yesVadose Zone Journal, 2019
Gas diffusion is a fundamental transport process in porous media. However, to date, there is no method for experimentally estimating the gas diffusion coefficient of coarse porous media.
Elad Levintal   +3 more
doaj   +1 more source

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