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Time at which Drawdowns are measured for Storage Coefficient Formula

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The Total Drawdown is referred as 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. Check FAQs

s t = S \cdot \frac{{r o}^{2}}{2.25 \cdot T}

s_t - Total Drawdown?S - Storage Coefficient?r_o - Distance from Pumping Well to Point Intersection?T - Transmissivity?

Time at which Drawdowns are measured for Storage Coefficient Example

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Here is how the Time at which Drawdowns are measured for Storage Coefficient equation looks like with Values.

Here is how the Time at which Drawdowns are measured for Storage Coefficient equation looks like with Units.

Here is how the Time at which Drawdowns are measured for Storage Coefficient equation looks like.

0.0352 = 0.0545 \cdot \frac{4^{2}}{2.25 \cdot 11}

0.0352m = 0.0545 \cdot \frac{{4m}^{2}}{2.25 \cdot 11m²/s}

0.0352 = 0.0545 \cdot \frac{4^{2}}{2.25 \cdot 11}

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Time at which Drawdowns are measured for Storage Coefficient Solution

Follow our step by step solution on how to calculate Time at which Drawdowns are measured for Storage Coefficient?

FIRST Step Consider the formula

s t = S \cdot \frac{{r o}^{2}}{2.25 \cdot T}

Next Step Substitute values of Variables

∴

s t = 0.0545 \cdot \frac{{4m}^{2}}{2.25 \cdot 11m²/s}

Next Step Prepare to Evaluate

∴

s t = 0.0545 \cdot \frac{4^{2}}{2.25 \cdot 11}

Next Step Evaluate

∴

s t = 0.0352323232323232m

LAST Step Rounding Answer

∴

s t = 0.0352m

Time at which Drawdowns are measured for Storage Coefficient Formula Elements

Variables

Total Drawdown

The Total Drawdown is referred as 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: s_t

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Total Drawdown

Storage Coefficient

The Storage Coefficient is referred as volume of water released from storage per unit decline in hydraulic head in the aquifer, per unit area of the aquifer.

Symbol: S

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Storage Coefficient

Distance from Pumping Well to Point Intersection

The Distance from Pumping Well to Point Intersection is referred as the straight line which intersects the zero-drawdown line.

Symbol: r_o

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Distance from Pumping Well to Point Intersection

Transmissivity

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.

Symbol: T

Measurement: Kinematic ViscosityUnit: m²/s

Note: Value can be positive or negative.

Formulas to find Transmissivity

Other formulas in Distance Drawdown Analysis category

Go Transmissivity from Distance Drawdown Graphs

T = 2.3 \cdot \frac{q}{2 \cdot π \cdot Δs D}

Go Storage Coefficient from Distance-Drawdown Graphs

S = 2.25 \cdot T \cdot \frac{s t}{{r o}^{2}}

Go Pumping Rate from Distance Drawdown Graphs

q = T \cdot 2 \cdot π \cdot \frac{Δs D}{2.3}

Go Drawdown across One Log Cycle from Distance Drawdown Graphs given Transmissivity

Δs D = 2.3 \cdot \frac{q}{T \cdot 2 \cdot π}

How to Evaluate Time at which Drawdowns are measured for Storage Coefficient?

Time at which Drawdowns are measured for Storage Coefficient evaluator uses Total Drawdown = Storage Coefficient*Distance from Pumping Well to Point Intersection^2/(2.25*Transmissivity) to evaluate the Total Drawdown, The Time at which Drawdowns are measured for Storage Coefficient formula is defined as the time at which 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. Total Drawdown is denoted by s_t symbol.

How to evaluate Time at which Drawdowns are measured for Storage Coefficient using this online evaluator? To use this online evaluator for Time at which Drawdowns are measured for Storage Coefficient, enter Storage Coefficient (S), Distance from Pumping Well to Point Intersection (r_o) & Transmissivity (T) and hit the calculate button.

FAQs on Time at which Drawdowns are measured for Storage Coefficient

What is the formula to find Time at which Drawdowns are measured for Storage Coefficient?

The formula of Time at which Drawdowns are measured for Storage Coefficient is expressed as Total Drawdown = Storage Coefficient*Distance from Pumping Well to Point Intersection^2/(2.25*Transmissivity). Here is an example- 0.035232 = 0.0545*4^2/(2.25*11).

How to calculate Time at which Drawdowns are measured for Storage Coefficient?

With Storage Coefficient (S), Distance from Pumping Well to Point Intersection (r_o) & Transmissivity (T) we can find Time at which Drawdowns are measured for Storage Coefficient using the formula - Total Drawdown = Storage Coefficient*Distance from Pumping Well to Point Intersection^2/(2.25*Transmissivity).

Can the Time at which Drawdowns are measured for Storage Coefficient be negative?

Yes, the Time at which Drawdowns are measured for Storage Coefficient, measured in Length can be negative.

Which unit is used to measure Time at which Drawdowns are measured for Storage Coefficient?

Time at which Drawdowns are measured for Storage Coefficient is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Time at which Drawdowns are measured for Storage Coefficient can be measured.

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Time at which Drawdowns are measured for Storage Coefficient Formula

Time at which Drawdowns are measured for Storage Coefficient Example

Time at which Drawdowns are measured for Storage Coefficient Solution

Time at which Drawdowns are measured for Storage Coefficient Formula Elements

Other formulas in Distance Drawdown Analysis category

How to Evaluate Time at which Drawdowns are measured for Storage Coefficient?

FAQs on Time at which Drawdowns are measured for Storage Coefficient

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