Chow's Function given Drawdown Calculator

✖Total Drawdown in Well is defined as 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 in Well [s_t]			+10% -10%
✖Change in Drawdown is defined as the difference at the two wells.ⓘ Change in Drawdown [Δd]			+10% -10%

✖Chow's Function is a constant given by chow.ⓘ Chow's Function given Drawdown [F_u]

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Chow's Function given Drawdown Solution

STEP 0: Pre-Calculation Summary

Formula Used

Chow's Function = Total Drawdown in Well/Change in Drawdown
F_u = s_t/Δd
This formula uses 3 Variables

Variables Used

Chow's Function - Chow's Function is a constant given by chow.
Total Drawdown in Well - (Measured in Meter) - Total Drawdown in Well is defined as 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.
Change in Drawdown - (Measured in Meter) - Change in Drawdown is defined as the difference at the two wells.

STEP 1: Convert Input(s) to Base Unit

Total Drawdown in Well: 0.83 Meter --> 0.83 Meter No Conversion Required
Change in Drawdown: 0.23 Meter --> 0.23 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_u = s_t/Δd --> 0.83/0.23

Evaluating ... ...

F_u = 3.60869565217391

STEP 3: Convert Result to Output's Unit

3.60869565217391 --> No Conversion Required

FINAL ANSWER

3.60869565217391 ≈ 3.608696 <-- Chow's Function

(Calculation completed in 00.006 seconds)

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2100+ more calculators!

Verified by Ishita Goyal

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

Chow's Function given Drawdown Formula

LaTeX Go

Chow's Function = Total Drawdown in Well/Change in Drawdown
F_u = s_t/Δd

What is Drawdown?

A drawdown is a peak-to-trough decline during a specific period for an investment, trading account, or fund. A drawdown is usually quoted as the percentage between the peak and the subsequent trough.

How to Calculate Chow's Function given Drawdown?

Chow's Function given Drawdown calculator uses Chow's Function = Total Drawdown in Well/Change in Drawdown to calculate the Chow's Function, Chow's Function given Drawdown formula is defined as a dimensionless quantity used in unsteady flow analysis to describe the relationship between the storage coefficient and the drawdown of the water table in a confined aquifer during pumping. Chow's Function is denoted by F_u symbol.

How to calculate Chow's Function given Drawdown using this online calculator? To use this online calculator for Chow's Function given Drawdown, enter Total Drawdown in Well (s_t) & Change in Drawdown (Δd) and hit the calculate button. Here is how the Chow's Function given Drawdown calculation can be explained with given input values -> 3.608696 = 0.83/0.23.

FAQ

What is Chow's Function given Drawdown?

Chow's Function given Drawdown formula is defined as a dimensionless quantity used in unsteady flow analysis to describe the relationship between the storage coefficient and the drawdown of the water table in a confined aquifer during pumping and is represented as F_u = s_t/Δd or Chow's Function = Total Drawdown in Well/Change in Drawdown. Total Drawdown in Well is defined as 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 & Change in Drawdown is defined as the difference at the two wells.

How to calculate Chow's Function given Drawdown?

Chow's Function given Drawdown formula is defined as a dimensionless quantity used in unsteady flow analysis to describe the relationship between the storage coefficient and the drawdown of the water table in a confined aquifer during pumping is calculated using Chow's Function = Total Drawdown in Well/Change in Drawdown. To calculate Chow's Function given Drawdown, you need Total Drawdown in Well (s_t) & Change in Drawdown (Δd). With our tool, you need to enter the respective value for Total Drawdown in Well & Change in Drawdown 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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