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Modified Drawdown in Well 1 given Aquifer Constant Formula

GoModified Drawdown in Well 1 Formula

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Modified Drawdown 1 is the modified value of drawdown for well 1. Check FAQs

s1' = s2' + (\frac{Q \cdot \log ((\frac{r 2}{r 1}), e)}{2.72 \cdot T})

s1^' - Modified Drawdown 1?s2^' - Modified Drawdown 2?Q - Discharge?r₂ - Radial Distance at Observation Well 2?r₁ - Radial Distance at Observation Well 1?T - Aquifer Constant?

Modified Drawdown in Well 1 given Aquifer Constant Example

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Here is how the Modified Drawdown in Well 1 given Aquifer Constant equation looks like with Values.

Here is how the Modified Drawdown in Well 1 given Aquifer Constant equation looks like with Units.

Here is how the Modified Drawdown in Well 1 given Aquifer Constant equation looks like.

1.7203 = 1.714 + (\frac{1.01 \cdot \log ((\frac{10}{1.07}), e)}{2.72 \cdot 26.52})

1.7203m = 1.714m + (\frac{1.01m³/s \cdot \log ((\frac{10m}{1.07m}), e)}{2.72 \cdot 26.52})

1.7203 = 1.714 + (\frac{1.01 \cdot \log ((\frac{10}{1.07}), e)}{2.72 \cdot 26.52})

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Modified Drawdown in Well 1 given Aquifer Constant Solution

Follow our step by step solution on how to calculate Modified Drawdown in Well 1 given Aquifer Constant?

FIRST Step Consider the formula

s1' = s2' + (\frac{Q \cdot \log ((\frac{r 2}{r 1}), e)}{2.72 \cdot T})

Next Step Substitute values of Variables

∴

s1' = 1.714m + (\frac{1.01m³/s \cdot \log ((\frac{10m}{1.07m}), e)}{2.72 \cdot 26.52})

Next Step Prepare to Evaluate

∴

s1' = 1.714 + (\frac{1.01 \cdot \log ((\frac{10}{1.07}), e)}{2.72 \cdot 26.52})

Next Step Evaluate

∴

s1' = 1.72026492268453m

LAST Step Rounding Answer

∴

s1' = 1.7203m

Modified Drawdown in Well 1 given Aquifer Constant Formula Elements

Variables

Functions

Modified Drawdown 1

Modified Drawdown 1 is the modified value of drawdown for well 1.

Symbol: s1^'

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Modified Drawdown 1

Modified Drawdown 2

Modified Drawdown 2 is the modified value of drawdown for well 2.

Symbol: s2^'

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Modified Drawdown 2

Discharge

Discharge is the rate of flow of a liquid through well or aquifers.

Symbol: Q

Measurement: Volumetric Flow RateUnit: m³/s

Note: Value can be positive or negative.

Formulas to find Discharge

Radial Distance at Observation Well 2

Radial Distance at Observation Well 2 is the value of radial distance from well 2 when we have prior information of other parameters used.

Symbol: r₂

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Radial Distance at Observation Well 2

Radial Distance at Observation Well 1

Radial Distance at Observation Well 1 is the value of radial distance from well 1 when we have prior information of other parameters used.

Symbol: r₁

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Radial Distance at Observation Well 1

Aquifer Constant

Aquifer Constant is also known as coefficient of transmissibility.

Symbol: T

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Aquifer Constant

log

Logarithmic function is an inverse function to exponentiation.

Syntax: log(Base, Number)

Other Formulas to find Modified Drawdown 1

Go Modified Drawdown in Well 1

s1' = s 1 - (\frac{{(s 1)}^{2}}{2 \cdot H i})

Other formulas in Modified Discharge And Drawdown in Unconfined Aquifers category

Go Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 1

H ui = (\frac{{(s 1)}^{2}}{2 \cdot (s 1 - s1')})

Go Modified Drawdown in Well 2

s2' = s 2 - (\frac{{(s 2)}^{2}}{2 \cdot H i})

Go Thickness of Aquifer from Impermeable Layer given Modified Drawdown in Well 2

H ui = (\frac{{(s 2)}^{2}}{2 \cdot (s 2 - s2')})

Go Unconfined Aquifer Discharge given Aquifer Constant

Q = \frac{T}{\frac{\log ((\frac{r 2}{r 1}), e)}{2.72 \cdot (s1' - s2')}}

How to Evaluate Modified Drawdown in Well 1 given Aquifer Constant?

Modified Drawdown in Well 1 given Aquifer Constant evaluator uses Modified Drawdown 1 = Modified Drawdown 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),e))/(2.72*Aquifer Constant)) to evaluate the Modified Drawdown 1, The Modified Drawdown in Well 1 given Aquifer Constant formula is defined as the calculation of the value of modified drawdown in well when we have prior information of aquifer constant. Modified Drawdown 1 is denoted by s1^' symbol.

How to evaluate Modified Drawdown in Well 1 given Aquifer Constant using this online evaluator? To use this online evaluator for Modified Drawdown in Well 1 given Aquifer Constant, enter Modified Drawdown 2 (s2^'), Discharge (Q), Radial Distance at Observation Well 2 (r₂), Radial Distance at Observation Well 1 (r₁) & Aquifer Constant (T) and hit the calculate button.

FAQs on Modified Drawdown in Well 1 given Aquifer Constant

What is the formula to find Modified Drawdown in Well 1 given Aquifer Constant?

The formula of Modified Drawdown in Well 1 given Aquifer Constant is expressed as Modified Drawdown 1 = Modified Drawdown 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),e))/(2.72*Aquifer Constant)). Here is an example- 1.720735 = 1.714+((1.01*log((10/1.07),e))/(2.72*26.52)).

How to calculate Modified Drawdown in Well 1 given Aquifer Constant?

With Modified Drawdown 2 (s2^'), Discharge (Q), Radial Distance at Observation Well 2 (r₂), Radial Distance at Observation Well 1 (r₁) & Aquifer Constant (T) we can find Modified Drawdown in Well 1 given Aquifer Constant using the formula - Modified Drawdown 1 = Modified Drawdown 2+((Discharge*log((Radial Distance at Observation Well 2/Radial Distance at Observation Well 1),e))/(2.72*Aquifer Constant)). This formula also uses Logarithmic Inverse (log) function(s).

What are the other ways to Calculate Modified Drawdown 1?

Here are the different ways to Calculate Modified Drawdown 1-

Modified Drawdown 1=Drawdown in Well 1-((Drawdown in Well 1)^2/(2*Initial Aquifer Thickness))

Can the Modified Drawdown in Well 1 given Aquifer Constant be negative?

No, the Modified Drawdown in Well 1 given Aquifer Constant, measured in Length cannot be negative.

Which unit is used to measure Modified Drawdown in Well 1 given Aquifer Constant?

Modified Drawdown in Well 1 given Aquifer Constant is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Modified Drawdown in Well 1 given Aquifer Constant can be measured.

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Modified Drawdown in Well 1 given Aquifer Constant Formula

​GoModified Drawdown in Well 1 Formula

Modified Drawdown in Well 1 given Aquifer Constant Example

Modified Drawdown in Well 1 given Aquifer Constant Solution

Modified Drawdown in Well 1 given Aquifer Constant Formula Elements

Other Formulas to find Modified Drawdown 1

Other formulas in Modified Discharge And Drawdown in Unconfined Aquifers category

How to Evaluate Modified Drawdown in Well 1 given Aquifer Constant?

FAQs on Modified Drawdown in Well 1 given Aquifer Constant

Variable Name

GoModified Drawdown in Well 1 Formula