Change in Drawdown given Formation Constant T Calculator

✖Discharge is the rate of flow of a fluid in unsteady flow.ⓘ Discharge [Q]			+10% -10%
✖Formation Constant for Unsteady Flow is an equilibrium constant for the formation of a complex in solution.ⓘ Formation Constant for Unsteady Flow [F_c]			+10% -10%

✖Change in Drawdown is defined as the difference at the two wells.ⓘ Change in Drawdown given Formation Constant T [Δd]

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Change in Drawdown given Formation Constant T Solution

STEP 0: Pre-Calculation Summary

Formula Used

Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow)
Δd = (2.303*Q)/(4*pi*F_c)
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Change in Drawdown - (Measured in Meter) - Change in Drawdown is defined as the difference at the two wells.
Discharge - (Measured in Cubic Meter per Second) - Discharge is the rate of flow of a fluid in unsteady flow.
Formation Constant for Unsteady Flow - (Measured in Square Meter per Second) - Formation Constant for Unsteady Flow is an equilibrium constant for the formation of a complex in solution.

STEP 1: Convert Input(s) to Base Unit

Discharge: 1.01 Cubic Meter per Second --> 1.01 Cubic Meter per Second No Conversion Required
Formation Constant for Unsteady Flow: 0.8 Square Meter per Second --> 0.8 Square Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Δd = (2.303*Q)/(4*pi*F_c) --> (2.303*1.01)/(4*pi*0.8)

Evaluating ... ...

Δd = 0.231374482675026

STEP 3: Convert Result to Output's Unit

0.231374482675026 Meter --> No Conversion Required

FINAL ANSWER

0.231374482675026 ≈ 0.231374 Meter <-- Change in Drawdown

(Calculation completed in 00.004 seconds)

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

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Meerut Institute of Engineering and Technology (MIET), Meerut

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< Drawdown and Change in Drawdown Calculators

Change in Drawdown given Time at 1st and 2nd Instance

LaTeX Go Difference in Drawdowns = (2.303*Discharge*log((Time of Drawdown/Time of Drawdown (t1)),10))/(4*pi*Time in Hours for Well Discharge)

Drawdown given Well Function

LaTeX Go Total Drawdown in Well = (Discharge*Well Function of u)/(4*pi*Formation Constant for Unsteady Flow)

Change in Drawdown given Formation Constant T

LaTeX Go Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow)

Chow's Function given Drawdown

LaTeX Go Chow's Function = Total Drawdown in Well/Change in Drawdown

Change in Drawdown given Formation Constant T Formula

LaTeX Go

Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow)
Δd = (2.303*Q)/(4*pi*F_c)

What is Drawdown?

Drawdown is a change in groundwater level due to an applied stress, caused by events such as: Pumping from a well. Pumping from a neighbouring well. Intensive water taking from local area.

How to Calculate Change in Drawdown given Formation Constant T?

Change in Drawdown given Formation Constant T calculator uses Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow) to calculate the Change in Drawdown, Change in Drawdown given Formation Constant T formula is defined as a measure of the alteration in the drawdown of a well or reservoir during unsteady flow conditions, influenced by the formation constant T, which affects the flow rate and pressure distribution in the system. Change in Drawdown is denoted by Δd symbol.

How to calculate Change in Drawdown given Formation Constant T using this online calculator? To use this online calculator for Change in Drawdown given Formation Constant T, enter Discharge (Q) & Formation Constant for Unsteady Flow (F_c) and hit the calculate button. Here is how the Change in Drawdown given Formation Constant T calculation can be explained with given input values -> 0.228518 = (2.303*1.01)/(4*pi*0.8).

FAQ

What is Change in Drawdown given Formation Constant T?

Change in Drawdown given Formation Constant T formula is defined as a measure of the alteration in the drawdown of a well or reservoir during unsteady flow conditions, influenced by the formation constant T, which affects the flow rate and pressure distribution in the system and is represented as Δd = (2.303*Q)/(4*pi*F_c) or Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow). Discharge is the rate of flow of a fluid in unsteady flow & Formation Constant for Unsteady Flow is an equilibrium constant for the formation of a complex in solution.

How to calculate Change in Drawdown given Formation Constant T?

Change in Drawdown given Formation Constant T formula is defined as a measure of the alteration in the drawdown of a well or reservoir during unsteady flow conditions, influenced by the formation constant T, which affects the flow rate and pressure distribution in the system is calculated using Change in Drawdown = (2.303*Discharge)/(4*pi*Formation Constant for Unsteady Flow). To calculate Change in Drawdown given Formation Constant T, you need Discharge (Q) & Formation Constant for Unsteady Flow (F_c). With our tool, you need to enter the respective value for Discharge & Formation Constant for Unsteady Flow and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Change in Drawdown?

In this formula, Change in Drawdown uses Discharge & Formation Constant for Unsteady Flow. We can use 1 other way(s) to calculate the same, which is/are as follows -

Change in Drawdown = Total Drawdown in Well/Chow's Function

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