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Change in Piezometric Head Formula

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Change in Piezometric Head is the difference in hydraulic head between two points within an aquifer or groundwater system. Check FAQs

dh = V r \cdot \frac{dr}{K}

dh - Change in Piezometric Head?V_r - Velocity of Flow at Radial Distance?dr - Change in Radial Distance?K - Coefficient of Permeability?

Change in Piezometric Head Example

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Here is how the Change in Piezometric Head equation looks like with Values.

Here is how the Change in Piezometric Head equation looks like with Units.

Here is how the Change in Piezometric Head equation looks like.

1.25 = 15 \cdot \frac{0.25}{3}

1.25m = 15cm/s \cdot \frac{0.25m}{3cm/s}

1.25 = 15 \cdot \frac{0.25}{3}

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Change in Piezometric Head Solution

Follow our step by step solution on how to calculate Change in Piezometric Head?

FIRST Step Consider the formula

dh = V r \cdot \frac{dr}{K}

Next Step Substitute values of Variables

∴

dh = 15cm/s \cdot \frac{0.25m}{3cm/s}

Next Step Convert Units

∴

dh = 0.15m/s \cdot \frac{0.25m}{0.03m/s}

Next Step Prepare to Evaluate

∴

dh = 0.15 \cdot \frac{0.25}{0.03}

LAST Step Evaluate

∴

dh = 1.25m

Change in Piezometric Head Formula Elements

Variables

Change in Piezometric Head

Change in Piezometric Head is the difference in hydraulic head between two points within an aquifer or groundwater system.

Symbol: dh

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Change in Piezometric Head

Velocity of Flow at Radial Distance

Velocity of Flow at Radial Distance is the speed at which groundwater moves through a porous medium at a specific radial distance from a well or other point of interest.

Symbol: V_r

Measurement: SpeedUnit: cm/s

Note: Value can be positive or negative.

Formulas to find Velocity of Flow at Radial Distance

Change in Radial Distance

Change in Radial Distance is the variation in distance from a pumping well to a specific point in an aquifer over time.

Symbol: dr

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Change in Radial Distance

Coefficient of Permeability

Coefficient of Permeability is the measure of the ability of a porous material (such as soil or rock) to transmit fluids through it. It quantifies how easily water can flow through the material.

Symbol: K

Measurement: SpeedUnit: cm/s

Note: Value can be positive or negative.

Formulas to find Coefficient of Permeability

Other formulas in Steady Flow into a Well category

Go Velocity of Flow by Darcy's Law at Radical Distance

V r = K \cdot (\frac{dh}{dr})

Go Change in Radial Distance

dr = K \cdot \frac{dh}{V r}

Go Cylindrical Surface through which Velocity of Flow Occurs

S = 2 \cdot π \cdot r \cdot H a

Go Discharge Entering Cylindrical Surface to Well Discharge

Q = (2 \cdot π \cdot r \cdot H a) \cdot (K \cdot (\frac{dh}{dr}))

How to Evaluate Change in Piezometric Head?

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

How to evaluate Change in Piezometric Head using this online evaluator? To use this online evaluator for Change in Piezometric Head, enter Velocity of Flow at Radial Distance (V_r), Change in Radial Distance (dr) & Coefficient of Permeability (K) and hit the calculate button.

FAQs on Change in Piezometric Head

What is the formula to find Change in Piezometric Head?

The formula of Change in Piezometric Head is expressed as Change in Piezometric Head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability. Here is an example- 1.25 = 0.15*0.25/0.03.

How to calculate Change in Piezometric Head?

With Velocity of Flow at Radial Distance (V_r), Change in Radial Distance (dr) & Coefficient of Permeability (K) we can find Change in Piezometric Head using the formula - Change in Piezometric Head = Velocity of Flow at Radial Distance*Change in Radial Distance/Coefficient of Permeability.

Can the Change in Piezometric Head be negative?

Yes, the Change in Piezometric Head, measured in Length can be negative.

Which unit is used to measure Change in Piezometric Head?

Change in Piezometric Head is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Change in Piezometric Head can be measured.

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Change in Piezometric Head Formula

Change in Piezometric Head Example

Change in Piezometric Head Solution

Change in Piezometric Head Formula Elements

Other formulas in Steady Flow into a Well category

How to Evaluate Change in Piezometric Head?

FAQs on Change in Piezometric Head

Variable Name