Fyzikální model transportu v rozpukaném porézním prostředí
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Date
2020-06-29
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Abstract
Byl zprovozněn fyzikální model transportu kontaminantu v rozpukaném porézním prostředí. Transport kontaminantu z úložiště radioaktivního materiálu skrze horninový masiv v řádu jednotek kilometrů trvá miliony let. Zde byl nahrazen transportem skrze lože skleněných kuliček o rozměru 800 mm v časech řádově jednotek minut. Byla provedena měření hydraulické vodivosti kuliček o různých průměrech. Jako realizace zjednodušené puklinové zóny v hornině byla na 3D tiskárně vytištěna puklina. Provedena byla dvě měření. První měření bylo bez pukliny se samotnými kuličkami a druhé s puklinou. Obě měření byla nafilmovaná a jsou srovnána s numerickým modelem.
A physical model of contaminant transport in a cracked porous media was put into operation. The transport of contaminants from the repository of radioactive material through the rock mass in the order of kilometers takes millions of years. Here it was replaced by transport through a bed of glass balls measuring 800 mm at times of the order of units of minutes. Measurements of the hydraulic conductivity of balls of different diameters were performed. As an implementation of a simplified fracture zone in the rock, a fracture was printed on a 3D printer. Two measurements were performed. The first measurement was without a fracture with the beads alone and the second with a fracture. Both measurements were filmed and are compared with a numerical model.
A physical model of contaminant transport in a cracked porous media was put into operation. The transport of contaminants from the repository of radioactive material through the rock mass in the order of kilometers takes millions of years. Here it was replaced by transport through a bed of glass balls measuring 800 mm at times of the order of units of minutes. Measurements of the hydraulic conductivity of balls of different diameters were performed. As an implementation of a simplified fracture zone in the rock, a fracture was printed on a 3D printer. Two measurements were performed. The first measurement was without a fracture with the beads alone and the second with a fracture. Both measurements were filmed and are compared with a numerical model.
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Porézní prostředí, porozita, permeabilita, hydraulická vodivost, fyzikální model, numerický model, Porous medium, porosity, permeability, hydraulic conductivity, physical model, numeric model