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Unformatted text preview: smaller grain size samples gave a lower flow rate for the same pressure drop. 3) This shows that the flow rate increases when the delta ‐ P increases, which is consistent with Darcy’s law, which has the flow rate linearly proportional to delta ‐ P. 4) Darcy’s law would predict a y ‐ intercept of 0, because when delta ‐ P is 0, the flow should be 0. However, the data shows that the y ‐ intercept is non ‐ zero for some of the samples. This could be a result of an extra pressure drop in the system which we are not accounting for. 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 2000 4000 6000 8000 10000 FlowRate,cc/s Pressure Drop, Pa Sand small beads large beads...
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 Spring '11
 Olson
 Integers, pressure drop, smaller grain size

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