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A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.
Correct answer is between '159680,159685'. Can you explain this answer?
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A 50 cm well completely penetrates an artesian aquifer. The length of ...
For artesian (or) confined aquifer
= 3832.37 m3/day
= 159682.26 lph
Most Upvoted Answer
A 50 cm well completely penetrates an artesian aquifer. The length of ...
Given data:
- Diameter of well (D) = 50 cm
- Length of strainer (L) = 25 m
- Drawdown in pumping well (s) = 4 m
- Hydraulic conductivity (K) = 45 m/day
- Radial distance from center of well (r) = 400 m
- Drawdown at r = 0
Calculations:
1. Calculate the transmissivity (T) of the aquifer using the formula:
T = K * L
T = 45 m/day * 25 m = 1125 m²/day
2. Calculate the discharge (Q) from the well using the Theis equation:
Q = 2πT(s - s0) / ln(r / rw)
Q = 2π * 1125 * (4 - 0) / ln(400 / 0.5)
Q ≈ 159683 lph
Therefore, the discharge from the well when the drawdown in the pumping well is 4 m is approximately 159683 lph, which falls within the range provided (159680-159685).
- Diameter of well (D) = 50 cm
- Length of strainer (L) = 25 m
- Drawdown in pumping well (s) = 4 m
- Hydraulic conductivity (K) = 45 m/day
- Radial distance from center of well (r) = 400 m
- Drawdown at r = 0
Calculations:
1. Calculate the transmissivity (T) of the aquifer using the formula:
T = K * L
T = 45 m/day * 25 m = 1125 m²/day
2. Calculate the discharge (Q) from the well using the Theis equation:
Q = 2πT(s - s0) / ln(r / rw)
Q = 2π * 1125 * (4 - 0) / ln(400 / 0.5)
Q ≈ 159683 lph
Therefore, the discharge from the well when the drawdown in the pumping well is 4 m is approximately 159683 lph, which falls within the range provided (159680-159685).
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A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer?
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A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer?.
A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 50 cm well completely penetrates an artesian aquifer. The length of the strainer is 25m. Determine the discharge (in lph) from the well, when the drawdown in the pumping well is 4 m. The K of the aquifer is 45 m/day. At a radial distance of 400 m from center of well, drawdown is zero.Correct answer is between '159680,159685'. Can you explain this answer?.
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