Consider groundwater flow between two parallel rivers from our lectures. The distance between the rivers (L)...

 

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Consider groundwater flow between two parallel rivers from our lectures. The distance between the rivers (L) is 2,000 feet and aquifer is 60 feet thick (H=60 ft). The hydraulic conductivity is k=1 ft/day and porosity equals 0.3. Compute head, discharge (Qx) and specific discharge (qx) at x=0, x=L/2 and x=L and, for case 2 only, the point of transition between confined and unconfined flow. Heads at left river (at x=0) and right river (at x=L) are measured relative to the impermeable base and they are (you need to analyze 3 cases): case 1. left head: 80 feet, right head: 60 feet case 2. left head: 60 feet, right head: 40 feet case 3. left head: 75 feet, right head: 45 feet Estimate the time necessary for a contaminant particle to flow between the rivers for all cases. Consider groundwater flow between two parallel rivers from our lectures. The distance between the rivers (L) is 2,000 feet and aquifer is 60 feet thick (H=60 ft). The hydraulic conductivity is k=1 ft/day and porosity equals 0.3. Compute head, discharge (Qx) and specific discharge (qx) at x=0, x=L/2 and x=L and, for case 2 only, the point of transition between confined and unconfined flow. Heads at left river (at x=0) and right river (at x=L) are measured relative to the impermeable base and they are (you need to analyze 3 cases): case 1. left head: 80 feet, right head: 60 feet case 2. left head: 60 feet, right head: 40 feet case 3. left head: 75 feet, right head: 45 feet Estimate the time necessary for a contaminant particle to flow between the rivers for all cases.