Solutal convection induced by dissolution
WebThe results show that mechanical dispersion, which was ignored before, plays an important role in quantifying solutal convection in porous media. Since dispersivity generally increases with the scale of observations, knowledge obtained from the counter-intuitive results can be applied to predict mass transfer in large-scale applications such as CO₂ convective … WebOur results complete our previous numerical work [J. Philippi et al., "Solutal convection induced by dissolution," Phys. Rev. Fluids 4, 103801 (2024)] ... We show that the criterion …
Solutal convection induced by dissolution
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Webabsence of an external flow, dissolution itself can induce a convective flow due to the action of gravity. Here we perform a study of the physics of solutal convection induced by … WebApr 15, 2024 · First, when a soluble body is plunged into quiescent water, the dissolution itself induces solutal convection. The flow creates dissolution patterns, the initial scale of which is set by the solutal Rayleigh-Bénard instability. Secondly, we report the emergence of a streamwise dissolution pattern at the surface of an initially flat soluble ...
WebSep 27, 2024 · We numerically examine solutal convection in porous media, driven by the dissolution of carbon dioxide (CO 2) into water—an effective mechanism for CO 2 storage in saline aquifers.Dissolution is associated with slow diffusion of free-phase CO 2 into the underlying aqueous phase followed by density-driven convective mixing of CO 2 … Web开馆时间：周一至周日7:00-22:30 周五 7:00-12:00; 我的图书馆
WebJul 1, 2024 · convection induced by dissolution,” Phys. Rev. Fluids 4, 103801 (2024)] in order to determine the conditions for generating a convective flow under the action of … WebSolutal convection can also induce a pattern on the dissolving interface. We show experimentally with suspended and inclined blocks of salt and sugar, that in a linear stage, …
WebThe low temperature volume diffusion coefficients of zinc in aluminium have been measured over the temperature range from 180° to 235° C by determining the zinc concentraton profiles across grain boundaries more or less perpendicular to the surface of the extending across thick foils of aluminium which were chemically coatted with zinc and anneleed for …
http://www.meetingorganizer.copernicus.org/EGU2024/EGU2024-10653.pdf greater good argumentWebDec 11, 2024 · Linear and weakly nonlinear stability analyses are performed to investigate the dissolution-driven convection induced by the sequestration of carbon dioxide in a perfectly impervious geological formation. ... Slim, “ Solutal-convection regimes in a two-dimensional porous medium,” J. Fluid Mech. 741, 461 ... flingy carsWebConvective dissolution trapping is an important mechanism for CO₂ mitigation because of its high security and long-term storage capacity. This process is a problem of solutal convection in porous media, ... This anisotropy induced asymmetry and corresponding flux reduction are verified by a numerical simulation study. greater good awardWebJul 12, 2024 · Our results complete our previous numerical work [J. Philippi et al., “Solutal convection induced by dissolution,” Phys. Rev. Fluids 4, 103801 (2024)] in order to … flingy ces 5g carsWebIn the case of fast kinetic of dissolution, local erosion rate. Rock fractures invaded by a water flow, are often subjected to dissolution, which let grow and evolve the initial … greater good auctionWebDissolution increases the density of the water and so can lead to downwelling convection, which, in turn, substantially increases the rate of dissolution of CO 2 at the water–CO 2 interface. This convective dissolution process has inspired a great deal of academic study over the last 10–15 years; indeed, this wealth of recent research is one of the primary … greater good autism storeWebFIG. 1. (a) Shadowgraph image of solutal convective flow. A salt block is put in contact with fresh water and the image is taken 1.25 s after the contact. A graduation corresponds to 1 … greater good austin