Change in Piezometric Head Solution

STEP 0: Pre-Calculation Summary
Formula Used
Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability
dh = Vr*dr/K
This formula uses 4 Variables
Variables Used
Change in the piezometric head - (Measured in Meter) - Change in the piezometric head with respect to the radial distance.
Velocity of Flow at Radial Distance - (Measured in Meter per Second) - Velocity of Flow at Radial Distance by Darcy's law.
Change in Radial Distance - (Measured in Meter) - Change in Radial Distance with respect to the Piezometric Head.
Coefficient of Permeability - (Measured in Meter per Second) - The coefficient of permeability (K) is the velocity in meters or centimetres per second of water through soils.
STEP 1: Convert Input(s) to Base Unit
Velocity of Flow at Radial Distance: 20 Centimeter per Second --> 0.2 Meter per Second (Check conversion here)
Change in Radial Distance: 0.25 Meter --> 0.25 Meter No Conversion Required
Coefficient of Permeability: 3 Centimeter per Second --> 0.03 Meter per Second (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
dh = Vr*dr/K --> 0.2*0.25/0.03
Evaluating ... ...
dh = 1.66666666666667
STEP 3: Convert Result to Output's Unit
1.66666666666667 Meter --> No Conversion Required
FINAL ANSWER
1.66666666666667 1.666667 Meter <-- Change in the piezometric head
(Calculation completed in 00.004 seconds)

Credits

Created by Mithila Muthamma PA
Coorg Institute of Technology (CIT), Coorg
Mithila Muthamma PA has created this Calculator and 2000+ more calculators!
Verified by Chandana P Dev
NSS College of Engineering (NSSCE), Palakkad
Chandana P Dev has verified this Calculator and 1700+ more calculators!

10+ Steady Flow into a Well Calculators

Thiem's equilibrium equation for steady flow in confined aquifer
Go Steady Flow in a Confined Aquifer = 2*pi*Coefficient of Permeability*Width of Aquifer*(Piezometric Head at Radial Distance r2-Piezometric Head at Radial Distance r1)/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1)
Equilibrium Equation for Flow in Confined Aquifer at Observation Well
Go Discharge entering cylindrical surface into Well = (2*pi*Transmissivity*(Piezometric Head at Radial Distance r2-Piezometric Head at Radial Distance r1))/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1)
Transmissivity when Discharge and Drawdowns are considered
Go Transmissivity = Steady Flow in a Confined Aquifer*ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1)/(2*pi*(Drawdown at the Start of Recuperation-Drawdown at a Time))
Discharge Observed at Edge of Zone of Influence
Go Discharge entering cylindrical surface into Well = 2*pi*Transmissivity*Possible Drawdown in Confined Aquifer/ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1)
Discharge entering cylindrical surface to well discharge
Go Discharge entering cylindrical surface into Well = (2*pi*Radial Distance*Width of Aquifer)*(Coefficient of Permeability*(Change in the piezometric head/Change in Radial Distance))
Transmissivity when discharge at edge of zone of influence
Go Transmissivity = (Steady Flow in a Confined Aquifer*ln(Radial Distance at Observation Well 2/Radial Distance at Observation Well 1))/(2*pi*Possible Drawdown in Confined Aquifer)
Velocity of flow by Darcy's Law at Radical Distance
Go Velocity of Flow at Radial Distance = Coefficient of Permeability*(Change in the piezometric head/Change in Radial Distance)
Change in Piezometric Head
Go Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability
Change in Radial Distance
Go Change in Radial Distance = Coefficient of Permeability*Change in the piezometric head/Velocity of Flow at Radial Distance
Cylindrical Surface through which Velocity of Flow Occurs
Go Surface through which the Velocity of Flow Occurs = 2*pi*Radial Distance*Width of Aquifer

Change in Piezometric Head Formula

Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability
dh = Vr*dr/K

What is Coefficient of Permeability?

The Coefficient of Permeability of a soil describes how easily a liquid will move through a soil. It is also commonly referred to as the hydraulic conductivity of a soil. This factor can be affected by the viscosity, or thickness(fluidity) of a liquid and its density.

How to Calculate Change in Piezometric Head?

Change in Piezometric Head calculator uses Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability to calculate the Change in the piezometric head, Change in Piezometric Head is the change in hydraulic head of a specific measurement of liquid pressure above a vertical datum. Change in the piezometric head is denoted by dh symbol.

How to calculate Change in Piezometric Head using this online calculator? To use this online calculator for Change in Piezometric Head, enter Velocity of Flow at Radial Distance (Vr), Change in Radial Distance (dr) & Coefficient of Permeability (K) and hit the calculate button. Here is how the Change in Piezometric Head calculation can be explained with given input values -> 1.666667 = 0.2*0.25/0.03.

FAQ

What is Change in Piezometric Head?
Change in Piezometric Head is the change in hydraulic head of a specific measurement of liquid pressure above a vertical datum and is represented as dh = Vr*dr/K or Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability. Velocity of Flow at Radial Distance by Darcy's law, Change in Radial Distance with respect to the Piezometric Head & The coefficient of permeability (K) is the velocity in meters or centimetres per second of water through soils.
How to calculate Change in Piezometric Head?
Change in Piezometric Head is the change in hydraulic head of a specific measurement of liquid pressure above a vertical datum is calculated using Change in the piezometric head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability. To calculate Change in Piezometric Head, you need Velocity of Flow at Radial Distance (Vr), Change in Radial Distance (dr) & Coefficient of Permeability (K). With our tool, you need to enter the respective value for Velocity of Flow at Radial Distance, Change in Radial Distance & Coefficient of Permeability and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!