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Science, 1959
A method has been proposed for deriving a characteristic determining flow in porous systems. This characteristic combines both area and path-length factors used by earlier authors. For a gas, diffusive flow is proportional to the 4/3 power of the gas-filled porosity, and this function has been derived from consideration of the planar distribution of ...
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A method has been proposed for deriving a characteristic determining flow in porous systems. This characteristic combines both area and path-length factors used by earlier authors. For a gas, diffusive flow is proportional to the 4/3 power of the gas-filled porosity, and this function has been derived from consideration of the planar distribution of ...
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Bulletin of the Lebedev Physics Institute, 2011
A system of vortices is simulated as an oscillator gas with a certain temperature (rotation rate about axis). In the hydrodynamic approximation, the conditions at which diffusion anisotropy takes place in such gas are determined. For this case, longitudinal and transverse diffusion coefficients are determined and shown to be different.
E. E. Vinke, N. G. Gusein-zade
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A system of vortices is simulated as an oscillator gas with a certain temperature (rotation rate about axis). In the hydrodynamic approximation, the conditions at which diffusion anisotropy takes place in such gas are determined. For this case, longitudinal and transverse diffusion coefficients are determined and shown to be different.
E. E. Vinke, N. G. Gusein-zade
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Diffusion in a periodic Lorentz gas
Journal of Statistical Physics, 1987zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moran, Bill +2 more
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Gas Diffusion in the Middle Ear
Acta Oto-Laryngologica, 1991The ex vacuo theory, claiming that in cases of middle ear underaeration air enters the middle ear through the Eustachian tube in diminished amounts while oxygen continues to leave it into the blood by diffusion as in normal condition, does not provide a complete explanation for the aeration problems encountered in middle ear pathology. This study shows
J, Sadé, M, Luntz
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Gas diffusion from ascending gas bubbles
Journal of Fluid Mechanics, 1969General qualitative rules are derived for the behaviour of the volume of an ascending spherical bubble and of the gas pressure within it. Three modes of behaviour are discerned, corresponding to as many possible orderings of the relative influences of ascent velocity, gas leakage and surface tension on the volume and the pressure balance. These general
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2014
The GDL is important part of polymer electrolyte membrane PEM and direct methanol DM fuel cell. There are two gas diffusion layers (cathode and anode sides) which as the name suggests diffuse reactant gases to the catalyst layer (of the electrolyte membrane).
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The GDL is important part of polymer electrolyte membrane PEM and direct methanol DM fuel cell. There are two gas diffusion layers (cathode and anode sides) which as the name suggests diffuse reactant gases to the catalyst layer (of the electrolyte membrane).
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Industrial & Engineering Chemistry Analytical Edition, 1944
Dwight. Williams, George S. Haines
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Dwight. Williams, George S. Haines
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Gas diffusion electrodes and membranes for CO2 reduction electrolysers
Nature Reviews Materials, 2021Eric W Lees +2 more
exaly
1981
The original work on the flow of fluids through packed beds of powders was carried out by Darcy [1], who examined the rate of flow of water from the local fountains through beds of sand of various thickness. He showed that the average velocity, as measured over the whole area of the bed, was directly proportional to the driving pressure and inversely ...
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The original work on the flow of fluids through packed beds of powders was carried out by Darcy [1], who examined the rate of flow of water from the local fountains through beds of sand of various thickness. He showed that the average velocity, as measured over the whole area of the bed, was directly proportional to the driving pressure and inversely ...
openaire +1 more source