Results 21 to 30 of about 663,725 (292)

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

Visualization of Gas Diffusion-Sorption in Coal: A Study Based on Synchrotron Radiation Nano-CT

open access: yesGeofluids, 2020
Gas diffusion-sorption is a critical step in coalbed methane (CBM) exploitation and carbon dioxide sequestration. Because of the particularity of gas physical properties, it is difficult to visualize the gas diffusion-sorption process in coal by ...
Yingfeng Sun   +3 more
doaj   +1 more source

A new method for solving the fission gas diffusion equations with time-varying diffusion coefficient and source term considering recrystallization of fuel grains

open access: yesNuclear Materials and Energy, 2019
The fission gas swelling of nuclear fuels depends on the fission gas behavior in fuel grains, which will be accelerated by grain recrystallization occurred in some fuels.
Yunmei Zhao, Jingyu Zhang, Shurong Ding
doaj   +1 more source

Pore network modeling as a new tool for determining gas diffusivity in peat [PDF]

open access: yesBiogeosciences, 2022
Peatlands are globally significant carbon stocks and may become major sources of the greenhouse gases (GHGs) carbon dioxide and methane in a changing climate and under anthropogenic management pressure.
P. Kiuru   +8 more
doaj   +1 more source

Diffusion Coefficients and Viscosities of CO2 + H2O, CO2 + CH3OH, NH3 + H2O, and NH3 + CH3OH Liquid Mixtures [PDF]

open access: yes, 1996
To evaluate quantitatively the results of gas-liquid absorption experiments, accurate liquid-phase diffusion coefficients and viscosities are needed. In this paper experimental values of these quantities will be reported for the binary systems carbon ...
Frank, M.J.W.   +2 more
core   +3 more sources

Technical note: Determination of binary gas-phase diffusion coefficients of unstable and adsorbing atmospheric trace gases at low temperature – arrested flow and twin tube method [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
Gas-phase diffusion is the first step for all heterogeneous reactions under atmospheric conditions. Knowledge of binary diffusion coefficients is important for the interpretation of laboratory studies regarding heterogeneous trace gas uptake and ...
S. Langenberg   +7 more
doaj   +1 more source

A fast and explicit algorithm for simulating the dynamics of small dust grains with smoothed particle hydrodynamics [PDF]

open access: yes, 2015
We describe a simple method for simulating the dynamics of small grains in a dusty gas, relevant to micron-sized grains in the interstellar medium and grains of centimetre size and smaller in protoplanetary discs.
Laibe, Guillaume, Price, Daniel J.
core   +2 more sources

An estimation of gas volume in the water-saturated part of Cenomanian gas reservoirs: a case study of the Medvezhye oil and gas condensate field

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2023
The amount of remaining recoverable natural gas reserves is affected by the pinching of gas reserves by infiltrating water and degassing of formation water in the Cenomanian water-pressure complex.
O. V. Fominykh   +2 more
doaj   +1 more source

Numerical simulation of moving rigid body in rarefied gases [PDF]

open access: yes, 2014
In this paper we present a numerical scheme to simulate a moving rigid body with arbitrary shape suspended in a rarefied gas. The rarefied gas is simulated by solving the Boltzmann equation using a DSMC particle method.
Hardt, Steffen   +3 more
core   +1 more source

Discrete probability model-based method for recognition of multicomponent combustible gas explosion hazard sources

open access: yesHigh Temperature Materials and Processes, 2022
Aiming at the problems of poor sensitivity and low accuracy of traditional combustible gas explosion hazard identification methods, the discrete probability model was introduced to design a multicomponent combustible gas explosion hazard identification ...
Ye Wenhua, Feng Yang, Chen Yangming
doaj   +1 more source

Home - About - Disclaimer - Privacy