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Pressure Difference Formula

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Pressure Difference is the difference in pressure intensities at two different points in a liquid. Check FAQs

ΔP = 12 \cdot μ \cdot V mean \cdot \frac{L p}{w^{2}}

ΔP - Pressure Difference?μ - Dynamic Viscosity?V_mean - Mean Velocity?L_p - Length of Pipe?w - Width?

Pressure Difference Example

With values

With units

Only example

Here is how the Pressure Difference equation looks like with Values.

Here is how the Pressure Difference equation looks like with Units.

Here is how the Pressure Difference equation looks like.

4.4064 = 12 \cdot 10.2 \cdot 32.4 \cdot \frac{0.1}{3^{2}}

4.4064N/m² = 12 \cdot 10.2P \cdot 32.4m/s \cdot \frac{0.1m}{{3m}^{2}}

4.4064 = 12 \cdot 10.2 \cdot 32.4 \cdot \frac{0.1}{3^{2}}

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Pressure Difference Solution

Follow our step by step solution on how to calculate Pressure Difference?

FIRST Step Consider the formula

ΔP = 12 \cdot μ \cdot V mean \cdot \frac{L p}{w^{2}}

Next Step Substitute values of Variables

∴

ΔP = 12 \cdot 10.2P \cdot 32.4m/s \cdot \frac{0.1m}{{3m}^{2}}

Next Step Convert Units

∴

ΔP = 12 \cdot 1.02Pa*s \cdot 32.4m/s \cdot \frac{0.1m}{{3m}^{2}}

Next Step Prepare to Evaluate

∴

ΔP = 12 \cdot 1.02 \cdot 32.4 \cdot \frac{0.1}{3^{2}}

Next Step Evaluate

∴

ΔP = 4.4064Pa

LAST Step Convert to Output's Unit

∴

ΔP = 4.4064N/m²

Pressure Difference Formula Elements

Variables

Pressure Difference

Pressure Difference is the difference in pressure intensities at two different points in a liquid.

Symbol: ΔP

Measurement: PressureUnit: N/m²

Note: Value can be positive or negative.

Formulas to find Pressure Difference

Dynamic Viscosity

The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied.

Symbol: μ

Measurement: Dynamic ViscosityUnit: P

Note: Value should be greater than 0.

Formulas to find Dynamic Viscosity

Mean Velocity

Mean velocity is defined as the average velocity of a fluid at a point and over an arbitrary time T.

Symbol: V_mean

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Mean Velocity

Length of Pipe

The Length of Pipe refers to total length from one end to another in which the liquid is flowing.

Symbol: L_p

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Length of Pipe

Width

Width is the measurement or extent of something from side to side.

Symbol: w

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Width

Other formulas in Laminar Flow between Parallel Plates, both Plates at Rest category

Go Velocity Distribution Profile

v = - (\frac{1}{2 \cdot μ}) \cdot dp|dr \cdot (w \cdot R - (R^{2}))

Go Distance between Plates using Velocity Distribution Profile

w = \frac{(\frac{- v \cdot 2 \cdot μ}{dp|dr}) + (R^{2})}{R}

Go Maximum Velocity between Plates

V max = \frac{(w^{2}) \cdot dp|dr}{8 \cdot μ}

Go Distance between Plates given Maximum Velocity between Plates

w = \sqrt{\frac{8 \cdot μ \cdot V max}{dp|dr}}

How to Evaluate Pressure Difference?

Pressure Difference evaluator uses Pressure Difference = 12*Dynamic Viscosity*Mean Velocity*Length of Pipe/(Width^2) to evaluate the Pressure Difference, The Pressure Difference is defined as the drop in pressure from one section of pipe to another section of pipe in the direction of flow. Pressure Difference is denoted by ΔP symbol.

How to evaluate Pressure Difference using this online evaluator? To use this online evaluator for Pressure Difference, enter Dynamic Viscosity (μ), Mean Velocity (V_mean), Length of Pipe (L_p) & Width (w) and hit the calculate button.

FAQs on Pressure Difference

What is the formula to find Pressure Difference?

The formula of Pressure Difference is expressed as Pressure Difference = 12*Dynamic Viscosity*Mean Velocity*Length of Pipe/(Width^2). Here is an example- 4.4064 = 12*1.02*32.4*0.1/(3^2).

How to calculate Pressure Difference?

With Dynamic Viscosity (μ), Mean Velocity (V_mean), Length of Pipe (L_p) & Width (w) we can find Pressure Difference using the formula - Pressure Difference = 12*Dynamic Viscosity*Mean Velocity*Length of Pipe/(Width^2).

Can the Pressure Difference be negative?

Yes, the Pressure Difference, measured in Pressure can be negative.

Which unit is used to measure Pressure Difference?

Pressure Difference is usually measured using the Newton per Square Meter[N/m²] for Pressure. Pascal[N/m²], Kilopascal[N/m²], Bar[N/m²] are the few other units in which Pressure Difference can be measured.

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Pressure Difference Formula

Pressure Difference Example

Pressure Difference Solution

Pressure Difference Formula Elements

Other formulas in Laminar Flow between Parallel Plates, both Plates at Rest category

How to Evaluate Pressure Difference?

FAQs on Pressure Difference

Variable Name