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Radius of Influence given Drawdown at Well is the horizontal distance from the center of a well to the point in an aquifer where the drawdown becomes negligible, typically zero. Check FAQs
Riw=r102.72TenvistQli
Riw - Radius of Influence given Drawdown at Well?r - Radius of Well?Tenvi - Coefficient of Transmissibility?st - Total Drawdown?Qli - Discharge of Liquid?

Radius of Influence given Drawdown at Well with Base 10 Example

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Here is how the Radius of Influence given Drawdown at Well with Base 10 equation looks like with Values.

Here is how the Radius of Influence given Drawdown at Well with Base 10 equation looks like with Units.

Here is how the Radius of Influence given Drawdown at Well with Base 10 equation looks like.

12.6131Edit=7.5Edit102.721.5Edit0.83Edit15Edit
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Radius of Influence given Drawdown at Well with Base 10 Solution

Follow our step by step solution on how to calculate Radius of Influence given Drawdown at Well with Base 10?

FIRST Step Consider the formula
Riw=r102.72TenvistQli
Next Step Substitute values of Variables
Riw=7.5m102.721.5m²/s0.83m15m³/s
Next Step Prepare to Evaluate
Riw=7.5102.721.50.8315
Next Step Evaluate
Riw=12.6130832843118m
LAST Step Rounding Answer
Riw=12.6131m

Radius of Influence given Drawdown at Well with Base 10 Formula Elements

Variables
Radius of Influence given Drawdown at Well
Radius of Influence given Drawdown at Well is the horizontal distance from the center of a well to the point in an aquifer where the drawdown becomes negligible, typically zero.
Symbol: Riw
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Radius of Well
Radius of Well is defined as the distance from center of well to its outer boundary.
Symbol: r
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Coefficient of Transmissibility
Coefficient of Transmissibility is defined as the rate of flow of water in gallons per day through a vertical strip of the aquifer.
Symbol: Tenvi
Measurement: Kinematic ViscosityUnit: m²/s
Note: Value should be greater than 0.
Total Drawdown
The Total Drawdown is defined as the reduction in hydraulic head observed at a well in an aquifer, typically due to pumping a well as part of an aquifer test or well test.
Symbol: st
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Discharge of Liquid
Discharge of Liquid is the rate of flow of a liquid.
Symbol: Qli
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value can be positive or negative.

Other Formulas to find Radius of Influence given Drawdown at Well

​Go Radius of Influence given Drawdown at Well
Riw=rexp(2πTenvistQli)

Other formulas in Radius of Influence category

​Go Radius of Influence given Discharge in Confined Aquifer
Rid=rexp(2πKWHbp(Hi-hw)Q0)
​Go Radius of Influence given Discharge in Confined Aquifer with Base 10
Rid=r102.72KWHbp(Hi-hw)Q0
​Go Radius of Influence given Coefficient of Transmissibility
ric=rexp(2πTenvi(Hi-hw)Q0)
​Go Radius of Influence given Coefficient of Transmissibility with Base 10
ric=r102.72Tenvi(Hi-hw)Qli

How to Evaluate Radius of Influence given Drawdown at Well with Base 10?

Radius of Influence given Drawdown at Well with Base 10 evaluator uses Radius of Influence given Drawdown at Well = Radius of Well*10^((2.72*Coefficient of Transmissibility*Total Drawdown)/Discharge of Liquid) to evaluate the Radius of Influence given Drawdown at Well, The Radius of Influence given Drawdown at Well with Base 10 formula is defined as the value of the horizontal distance from the center of a well (or borehole) to the point in an aquifer where the drawdown becomes negligible, typically zero. Radius of Influence given Drawdown at Well is denoted by Riw symbol.

How to evaluate Radius of Influence given Drawdown at Well with Base 10 using this online evaluator? To use this online evaluator for Radius of Influence given Drawdown at Well with Base 10, enter Radius of Well (r), Coefficient of Transmissibility (Tenvi), Total Drawdown (st) & Discharge of Liquid (Qli) and hit the calculate button.

FAQs on Radius of Influence given Drawdown at Well with Base 10

What is the formula to find Radius of Influence given Drawdown at Well with Base 10?
The formula of Radius of Influence given Drawdown at Well with Base 10 is expressed as Radius of Influence given Drawdown at Well = Radius of Well*10^((2.72*Coefficient of Transmissibility*Total Drawdown)/Discharge of Liquid). Here is an example- 12.61308 = 7.5*10^((2.72*1.5*0.83)/15).
How to calculate Radius of Influence given Drawdown at Well with Base 10?
With Radius of Well (r), Coefficient of Transmissibility (Tenvi), Total Drawdown (st) & Discharge of Liquid (Qli) we can find Radius of Influence given Drawdown at Well with Base 10 using the formula - Radius of Influence given Drawdown at Well = Radius of Well*10^((2.72*Coefficient of Transmissibility*Total Drawdown)/Discharge of Liquid).
What are the other ways to Calculate Radius of Influence given Drawdown at Well?
Here are the different ways to Calculate Radius of Influence given Drawdown at Well-
  • Radius of Influence given Drawdown at Well=Radius of Well*exp((2*pi*Coefficient of Transmissibility*Total Drawdown)/Discharge of Liquid)OpenImg
Can the Radius of Influence given Drawdown at Well with Base 10 be negative?
No, the Radius of Influence given Drawdown at Well with Base 10, measured in Length cannot be negative.
Which unit is used to measure Radius of Influence given Drawdown at Well with Base 10?
Radius of Influence given Drawdown at Well with Base 10 is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Radius of Influence given Drawdown at Well with Base 10 can be measured.
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