Sveiki! Varbūt kāds zinošāks var palīdzēt?
1) Dispersion in a capillary tube:
Griffiths: "It is obvious that movement of the center of the column of the tracers must measure the mean speed of flow." First, because the water at the center of the tube moves with twice the mean speed of the flow (the Hagen-Poiseuille flow), the water at (or near) the center must approach the column of tracer, absorb the tracer as it passes through the column, and then reject the tracer as it leaves on the other side of the column. "Tracers" te domāts kā "tracer fluid".
2) Kas ir beadpacks? Many researchers have carried out experimental studies of dispersion, almost exclusively, in beadpacks, unconsolidated sandpacks and sandstones. |
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