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Water Hammer Pressure Formula

GoWater Hammer Pressure given Ratio of Velocity of Water to Velocity of Sound in Water Formula

GoWater Hammer Pressure given Velocity of Sound in Water Formula

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Water Hammer Pressure in Environmental Eng. is defined as pressure surge caused by a rapid change in flow velocity in the pipeline. Check FAQs

P w = \frac{V w \cdot K w}{C}

P_w - Water Hammer Pressure in Environmental Eng.?V_w - Flow Velocity of Fluid?K_w - Bulk Modulus of Water?C - Velocity of Sound in Water?

Water Hammer Pressure Example

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Here is how the Water Hammer Pressure equation looks like with Values.

Here is how the Water Hammer Pressure equation looks like with Units.

Here is how the Water Hammer Pressure equation looks like.

1.7446 = \frac{13.47 \cdot 191.69}{1480}

1.7446MPa = \frac{13.47m/s \cdot 191.69MPa}{1480m/s}

1.7446 = \frac{13.47 \cdot 191.69}{1480}

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Water Hammer Pressure Solution

Follow our step by step solution on how to calculate Water Hammer Pressure?

FIRST Step Consider the formula

P w = \frac{V w \cdot K w}{C}

Next Step Substitute values of Variables

∴

P w = \frac{13.47m/s \cdot 191.69MPa}{1480m/s}

Next Step Convert Units

∴

P w = \frac{13.47m/s \cdot 1.9E+8Pa}{1480m/s}

Next Step Prepare to Evaluate

∴

P w = \frac{13.47 \cdot 1.9E+8}{1480}

Next Step Evaluate

∴

P w = 1744638.04054054Pa

Next Step Convert to Output's Unit

∴

P w = 1.74463804054054MPa

LAST Step Rounding Answer

∴

P w = 1.7446MPa

Water Hammer Pressure Formula Elements

Variables

Water Hammer Pressure in Environmental Eng.

Water Hammer Pressure in Environmental Eng. is defined as pressure surge caused by a rapid change in flow velocity in the pipeline.

Symbol: P_w

Measurement: PressureUnit: MPa

Note: Value should be greater than 0.

Formulas to find Water Hammer Pressure in Environmental Eng.

Flow Velocity of Fluid

Flow Velocity of Fluid gives the velocity of an element of fluid at a position and time.

Symbol: V_w

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Flow Velocity of Fluid

Bulk Modulus of Water

Bulk Modulus of Water is defined as the proportion of volumetric stress linked to the volumetric strain of definite material, although the deformation of the material is within the elastic limit.

Symbol: K_w

Measurement: PressureUnit: MPa

Note: Value should be greater than 0.

Formulas to find Bulk Modulus of Water

Velocity of Sound in Water

Velocity of Sound in Water is about 1,480 meters per second.

Symbol: C

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Velocity of Sound in Water

Other Formulas to find Water Hammer Pressure in Environmental Eng.

Go Water Hammer Pressure given Ratio of Velocity of Water to Velocity of Sound in Water

P w = (V R \cdot K w)

Go Water Hammer Pressure given Velocity of Sound in Water

P w = \frac{V w \cdot K w}{1434}

Other formulas in Water Hammer category

Go Bulk Modulus of Elasticity of Water given Ratio of Velocities

K w = \frac{P w}{V R}

Go Bulk Modulus of Elasticity of Water given Water Hammer Pressure

K w = \frac{C \cdot P w}{V w}

Go Velocity of Sound in Water given Water Hammer Pressure

C = \frac{V w \cdot K w}{P w}

Go Initial Velocity of Water given Velocity of Sound in Water

V w = \frac{P w \cdot 1434}{K w}

How to Evaluate Water Hammer Pressure?

Water Hammer Pressure evaluator uses Water Hammer Pressure in Environmental Eng. = (Flow Velocity of Fluid*Bulk Modulus of Water)/Velocity of Sound in Water to evaluate the Water Hammer Pressure in Environmental Eng., The Water Hammer Pressure formula is defined as the value of pressure surge or wave caused when a fluid (usually a liquid but sometimes also a gas) in motion is forced to stop or change direction suddenly (momentum change). Water Hammer Pressure in Environmental Eng. is denoted by P_w symbol.

How to evaluate Water Hammer Pressure using this online evaluator? To use this online evaluator for Water Hammer Pressure, enter Flow Velocity of Fluid (V_w), Bulk Modulus of Water (K_w) & Velocity of Sound in Water (C) and hit the calculate button.

FAQs on Water Hammer Pressure

What is the formula to find Water Hammer Pressure?

The formula of Water Hammer Pressure is expressed as Water Hammer Pressure in Environmental Eng. = (Flow Velocity of Fluid*Bulk Modulus of Water)/Velocity of Sound in Water. Here is an example- 1.8E-8 = (13.47*191690000)/1480.

How to calculate Water Hammer Pressure?

With Flow Velocity of Fluid (V_w), Bulk Modulus of Water (K_w) & Velocity of Sound in Water (C) we can find Water Hammer Pressure using the formula - Water Hammer Pressure in Environmental Eng. = (Flow Velocity of Fluid*Bulk Modulus of Water)/Velocity of Sound in Water.

What are the other ways to Calculate Water Hammer Pressure in Environmental Eng.?

Here are the different ways to Calculate Water Hammer Pressure in Environmental Eng.-

Water Hammer Pressure in Environmental Eng.=(Ratio of Velocities*Bulk Modulus of Water)
Water Hammer Pressure in Environmental Eng.=(Flow Velocity of Fluid*Bulk Modulus of Water)/1434

Can the Water Hammer Pressure be negative?

No, the Water Hammer Pressure, measured in Pressure cannot be negative.

Which unit is used to measure Water Hammer Pressure?

Water Hammer Pressure is usually measured using the Megapascal[MPa] for Pressure. Pascal[MPa], Kilopascal[MPa], Bar[MPa] are the few other units in which Water Hammer Pressure can be measured.

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