Equation for Storage Coefficient Calculator

✖Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it.ⓘ Transmissivity [T]			+10% -10%
✖Starting Time corresponding to zero drawdown.ⓘ Starting Time [t₀]			+10% -10%
✖Distance from Pumping Well to the point where drawdown occurs.ⓘ Distance from Pumping Well [r]			+10% -10%

✖Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer.ⓘ Equation for Storage Coefficient [S]

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Formula

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Equation for Storage Coefficient

Formula

`"S" = 2.25*"T"*"t"_{"0"}/"r"^2`

Example

`"85.25"=2.25*"11m²/s"*"31s"/("3m")^2`

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Equation for Storage Coefficient Solution

STEP 0: Pre-Calculation Summary

Formula Used

Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2
S = 2.25*T*t₀/r^2
This formula uses 4 Variables

Variables Used

Storage Coefficient - Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer.
Transmissivity - (Measured in Square Meter per Second) - Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it.
Starting Time - (Measured in Second) - Starting Time corresponding to zero drawdown.
Distance from Pumping Well - (Measured in Meter) - Distance from Pumping Well to the point where drawdown occurs.

STEP 1: Convert Input(s) to Base Unit

Transmissivity: 11 Square Meter per Second --> 11 Square Meter per Second No Conversion Required
Starting Time: 31 Second --> 31 Second No Conversion Required
Distance from Pumping Well: 3 Meter --> 3 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = 2.25*T*t₀/r^2 --> 2.25*11*31/3^2

Evaluating ... ...

S = 85.25

STEP 3: Convert Result to Output's Unit

85.25 --> No Conversion Required

FINAL ANSWER

85.25 <-- Storage Coefficient

(Calculation completed in 00.004 seconds)

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< 11 Unsteady Flow in a Confined Aquifer Calculators

Equation for Drawdown

Go Total Drawdown = (Discharge/(4*pi*Transmissivity))*ln((2.2*Transmissivity*Time Period)/(Distance from Pumping Well^2*Storage Coefficient))

Drawdown at Time Interval 't1'

Go Drawdown at time interval t1 = Drawdown at time interval t2-((Discharge/(4*pi*Transmissivity))*ln(Time of Drawdown (t2)/Time of Drawdown (t1)))

Drawdown at Time Interval 't2'

Go Drawdown at time interval t2 = ((Discharge/(4*pi*Transmissivity))*ln(Time of Drawdown (t2)/Time of Drawdown (t1)))+Drawdown at time interval t1

Equation for Well Function series to number of 4 digits

Go Well Function of u = -0.577216-ln(Well Parameter)+Well Parameter-(Well Parameter^2/2.2!)+(Well Parameter^3/3.3!)

Equation for Well Parameter

Go Well Parameter = (Distance from Pumping Well^2*Storage Coefficient)/(4*Transmissivity*Time Period)

Distance from Pumping Well given Storage Coefficient

Go Distance from Pumping Well = sqrt((2.25*Transmissivity*Starting Time/Storage Coefficient))

Initial Time given Pumping Well along with Storage Coefficient

Go Starting Time = (Storage Coefficient*Distance from Pumping Well^2)/(2.25*Transmissivity)

Transmissivity about given storage coefficient

Go Transmissivity = (Storage Coefficient*Distance from Pumping Well^2)/(2.25*Starting Time)

Equation for Storage Coefficient

Go Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2

Initial Constant Piezometric Head given drawdown

Go Initial constant Piezometric Head = Possible Drawdown in Confined Aquifer+Drawdown at time t

Drawdown given Piezometric Head

Go Possible Drawdown in Confined Aquifer = Initial constant Piezometric Head-Drawdown at time t

Equation for Storage Coefficient Formula

Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2
S = 2.25*T*t₀/r^2

What is Transmissivity?

Transmissivity describes the ability of the aquifer to transmit groundwater throughout its entire saturated thickness. Transmissivity is measured as the rate at which groundwater can flow through an aquifer section of unit width under a unit hydraulic gradient.

How to Calculate Equation for Storage Coefficient?

Equation for Storage Coefficient calculator uses Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2 to calculate the Storage Coefficient, The Equation for Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer. Storage Coefficient is denoted by S symbol.

How to calculate Equation for Storage Coefficient using this online calculator? To use this online calculator for Equation for Storage Coefficient, enter Transmissivity (T), Starting Time (t₀) & Distance from Pumping Well (r) and hit the calculate button. Here is how the Equation for Storage Coefficient calculation can be explained with given input values -> 85.25 = 2.25*11*31/3^2.

FAQ

What is Equation for Storage Coefficient?

The Equation for Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer and is represented as S = 2.25*T*t₀/r^2 or Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2. Transmissivity is the rate at which groundwater flows horizontally through an aquifer or the degree to which a medium allows something, in particular electromagnetic radiation, to pass through it, Starting Time corresponding to zero drawdown & Distance from Pumping Well to the point where drawdown occurs.

How to calculate Equation for Storage Coefficient?

The Equation for Storage Coefficient is the volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer is calculated using Storage Coefficient = 2.25*Transmissivity*Starting Time/Distance from Pumping Well^2. To calculate Equation for Storage Coefficient, you need Transmissivity (T), Starting Time (t₀) & Distance from Pumping Well (r). With our tool, you need to enter the respective value for Transmissivity, Starting Time & Distance from Pumping Well and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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