Discharge Observed at Edge of Zone of Influence Calculator

✖Transmissivity is the measure of how much water can be transmitted horizontally through a unit width of the entire thickness of an aquifer.ⓘ Transmissivity [τ]			+10% -10%
✖Possible Drawdown in Confined Aquifer is the drawdown that would have occurred if the aquifer had been confined (that is, if no dewatering had occurred).ⓘ Possible Drawdown in Confined Aquifer [s']			+10% -10%
✖Radial Distance at Observation Well 2 is the value of radial distance from well 2 when we have prior information of other parameters used.ⓘ Radial Distance at Observation Well 2 [r₂]			+10% -10%
✖Radial Distance at Observation Well 1 is the value of radial distance from well 1 when we have prior information of other parameters used.ⓘ Radial Distance at Observation Well 1 [r₁]			+10% -10%

✖Discharge Observed at Edge of Zone of Influence is the discharge at the outer boundary of the area affected by a particular hydrological activity, such as groundwater extraction or contamination.ⓘ Discharge Observed at Edge of Zone of Influence [Q_iz]

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Discharge Observed at Edge of Zone of Influence Solution

STEP 0: Pre-Calculation Summary

Formula Used

Discharge Observed at Edge of Zone of Influence = 2*pi*Transmissivity*Possible Drawdown in Confined Aquifer/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1)
Q_iz = 2*pi*τ*s'/ln(r₂/r₁)
This formula uses 1 Constants, 1 Functions, 5 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Functions Used

ln - The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function., ln(Number)

Variables Used

Discharge Observed at Edge of Zone of Influence - (Measured in Cubic Meter per Second) - Discharge Observed at Edge of Zone of Influence is the discharge at the outer boundary of the area affected by a particular hydrological activity, such as groundwater extraction or contamination.
Transmissivity - (Measured in Square Meter per Second) - Transmissivity is the measure of how much water can be transmitted horizontally through a unit width of the entire thickness of an aquifer.
Possible Drawdown in Confined Aquifer - (Measured in Meter) - Possible Drawdown in Confined Aquifer is the drawdown that would have occurred if the aquifer had been confined (that is, if no dewatering had occurred).
Radial Distance at Observation Well 2 - (Measured in Meter) - Radial Distance at Observation Well 2 is the value of radial distance from well 2 when we have prior information of other parameters used.
Radial Distance at Observation Well 1 - (Measured in Meter) - Radial Distance at Observation Well 1 is the value of radial distance from well 1 when we have prior information of other parameters used.

STEP 1: Convert Input(s) to Base Unit

Transmissivity: 1.4 Square Meter per Second --> 1.4 Square Meter per Second No Conversion Required
Possible Drawdown in Confined Aquifer: 0.2 Meter --> 0.2 Meter No Conversion Required
Radial Distance at Observation Well 2: 10 Meter --> 10 Meter No Conversion Required
Radial Distance at Observation Well 1: 5 Meter --> 5 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_iz = 2*pi*τ*s'/ln(r₂/r₁) --> 2*pi*1.4*0.2/ln(10/5)

Evaluating ... ...

Q_iz = 2.53812167942323

STEP 3: Convert Result to Output's Unit

2.53812167942323 Cubic Meter per Second --> No Conversion Required

FINAL ANSWER

2.53812167942323 ≈ 2.538122 Cubic Meter per Second <-- Discharge Observed at Edge of Zone of Influence

(Calculation completed in 00.004 seconds)

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Coorg Institute of Technology (CIT), Coorg

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< Steady Flow into a Well Calculators

Velocity of Flow by Darcy's Law at Radical Distance

LaTeX Go Velocity of Flow at Radial Distance = Coefficient of Permeability*(Change in Piezometric Head/Change in Radial Distance)

Change in Piezometric Head

LaTeX Go Change in Piezometric Head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability

Change in Radial Distance

LaTeX Go Change in Radial Distance = Coefficient of Permeability*Change in Piezometric Head/Velocity of Flow at Radial Distance

Cylindrical Surface through which Velocity of Flow Occurs

LaTeX Go Surface through which the Velocity of Flow Occurs = 2*pi*Radial Distance*Width of Aquifer

Discharge Observed at Edge of Zone of Influence Formula

LaTeX Go

What is Transmissivity?

Transmissivity describes the ability of the aquifer to transmit groundwater throughout its entire saturated thickness (Figure 7). 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 Discharge Observed at Edge of Zone of Influence?

Discharge Observed at Edge of Zone of Influence calculator uses Discharge Observed at Edge of Zone of Influence = 2*pi*Transmissivity*Possible Drawdown in Confined Aquifer/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1) to calculate the Discharge Observed at Edge of Zone of Influence, The Discharge Observed at Edge of Zone of Influence formula is defined as the measurement of groundwater flow or discharge at the outer boundary of the area affected by a particular hydrological activity, such as groundwater extraction, recharge, or contamination. This zone of influence is typically defined by the radius or extent to which the hydraulic effects of an activity, such as a pumping well, are felt. Discharge Observed at Edge of Zone of Influence is denoted by Q_iz symbol.

How to calculate Discharge Observed at Edge of Zone of Influence using this online calculator? To use this online calculator for Discharge Observed at Edge of Zone of Influence, enter Transmissivity (τ), Possible Drawdown in Confined Aquifer (s'), Radial Distance at Observation Well 2 (r₂) & Radial Distance at Observation Well 1 (r₁) and hit the calculate button. Here is how the Discharge Observed at Edge of Zone of Influence calculation can be explained with given input values -> 2.538122 = 2*pi*1.4*0.2/ln(10/5).

FAQ

What is Discharge Observed at Edge of Zone of Influence?

The Discharge Observed at Edge of Zone of Influence formula is defined as the measurement of groundwater flow or discharge at the outer boundary of the area affected by a particular hydrological activity, such as groundwater extraction, recharge, or contamination. This zone of influence is typically defined by the radius or extent to which the hydraulic effects of an activity, such as a pumping well, are felt and is represented as Q_iz = 2*pi*τ*s'/ln(r₂/r₁) or Discharge Observed at Edge of Zone of Influence = 2*pi*Transmissivity*Possible Drawdown in Confined Aquifer/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1). Transmissivity is the measure of how much water can be transmitted horizontally through a unit width of the entire thickness of an aquifer, Possible Drawdown in Confined Aquifer is the drawdown that would have occurred if the aquifer had been confined (that is, if no dewatering had occurred), Radial Distance at Observation Well 2 is the value of radial distance from well 2 when we have prior information of other parameters used & Radial Distance at Observation Well 1 is the value of radial distance from well 1 when we have prior information of other parameters used.

How to calculate Discharge Observed at Edge of Zone of Influence?

The Discharge Observed at Edge of Zone of Influence formula is defined as the measurement of groundwater flow or discharge at the outer boundary of the area affected by a particular hydrological activity, such as groundwater extraction, recharge, or contamination. This zone of influence is typically defined by the radius or extent to which the hydraulic effects of an activity, such as a pumping well, are felt is calculated using Discharge Observed at Edge of Zone of Influence = 2*pi*Transmissivity*Possible Drawdown in Confined Aquifer/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1). To calculate Discharge Observed at Edge of Zone of Influence, you need Transmissivity (τ), Possible Drawdown in Confined Aquifer (s'), Radial Distance at Observation Well 2 (r₂) & Radial Distance at Observation Well 1 (r₁). With our tool, you need to enter the respective value for Transmissivity, Possible Drawdown in Confined Aquifer, Radial Distance at Observation Well 2 & Radial Distance at Observation Well 1 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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