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Loss of Liquid Head Formula

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Loss of Liquid Head is a measure of the reduction in the total head of the fluid as it moves through a fluid system. Head loss is unavoidable in real fluids. Check FAQs

h μ = \frac{64 \cdot μ \cdot v}{2 \cdot [g] \cdot ρ l \cdot {d 1}^{2}}

h_μ - Loss of Liquid Head?μ - Absolute Viscosity of Oil in Seals?v - Velocity?ρ_l - Density Of Liquid?d₁ - Outside Diameter of Seal Ring?[g] - Gravitational acceleration on Earth?

Loss of Liquid Head Example

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Here is how the Loss of Liquid Head equation looks like with Values.

Here is how the Loss of Liquid Head equation looks like with Units.

Here is how the Loss of Liquid Head equation looks like.

2642.488 = \frac{64 \cdot 7.8 \cdot 119.6581}{2 \cdot 9.8066 \cdot 997 \cdot 34^{2}}

2642.488mm = \frac{64 \cdot 7.8cP \cdot 119.6581m/s}{2 \cdot 9.8066m/s² \cdot 997kg/m³ \cdot {34mm}^{2}}

2642.488 = \frac{64 \cdot 7.8 \cdot 119.6581}{2 \cdot 9.8066 \cdot 997 \cdot 34^{2}}

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Loss of Liquid Head Solution

Follow our step by step solution on how to calculate Loss of Liquid Head?

FIRST Step Consider the formula

h μ = \frac{64 \cdot μ \cdot v}{2 \cdot [g] \cdot ρ l \cdot {d 1}^{2}}

Next Step Substitute values of Variables

∴

h μ = \frac{64 \cdot 7.8cP \cdot 119.6581m/s}{2 \cdot [g] \cdot 997kg/m³ \cdot {34mm}^{2}}

Next Step Substitute values of Constants

∴

h μ = \frac{64 \cdot 7.8cP \cdot 119.6581m/s}{2 \cdot 9.8066m/s² \cdot 997kg/m³ \cdot {34mm}^{2}}

Next Step Convert Units

∴

h μ = \frac{64 \cdot 0.0078Pa*s \cdot 119.6581m/s}{2 \cdot 9.8066m/s² \cdot 997kg/m³ \cdot {0.034m}^{2}}

Next Step Prepare to Evaluate

∴

h μ = \frac{64 \cdot 0.0078 \cdot 119.6581}{2 \cdot 9.8066 \cdot 997 \cdot {0.034}^{2}}

Next Step Evaluate

∴

h μ = 2.6424879503736m

Next Step Convert to Output's Unit

∴

h μ = 2642.4879503736mm

LAST Step Rounding Answer

∴

h μ = 2642.488mm

Loss of Liquid Head Formula Elements

Variables

Constants

Loss of Liquid Head

Loss of Liquid Head is a measure of the reduction in the total head of the fluid as it moves through a fluid system. Head loss is unavoidable in real fluids.

Symbol: h_μ

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Loss of Liquid Head

Absolute Viscosity of Oil in Seals

The Absolute Viscosity of Oil in Seals represents the ratio of a fluid's shear stress to its velocity gradient. It is a fluid's internal flow resistance.

Symbol: μ

Measurement: Dynamic ViscosityUnit: cP

Note: Value should be greater than 0.

Formulas to find Absolute Viscosity of Oil in Seals

Velocity

Velocity is a vector quantity (it has both magnitude and direction) and is the rate of change of the position of an object with respect to time.

Symbol: v

Measurement: SpeedUnit: m/s

Note: Value can be positive or negative.

Formulas to find Velocity

Density Of Liquid

Density Of Liquid of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object.

Symbol: ρ_l

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Density Of Liquid

Outside Diameter of Seal Ring

The Outside Diameter of Seal Ring is any straight line segment that passes through the center of the ring and whose endpoints lie on the ring.

Symbol: d₁

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Outside Diameter of Seal Ring

Gravitational acceleration on Earth

Gravitational acceleration on Earth means that the velocity of an object in free fall will increase by 9.8 m/s2 every second.

Symbol: [g]

Value: 9.80665 m/s²

Other formulas in Straight Cut Sealings category

Go Absolute Viscosity given Loss of Liquid Head

μ = \frac{2 \cdot [g] \cdot ρ l \cdot h μ \cdot {d 1}^{2}}{64 \cdot v}

Go Outer Diameter of Seal Ring given Loss of Liquid Head

d 1 = \sqrt{\frac{64 \cdot μ \cdot v}{2 \cdot [g] \cdot ρ l \cdot h μ}}

Go Density of Liquid given Loss of Liquid Head

ρ l = \frac{64 \cdot μ \cdot v}{2 \cdot [g] \cdot h μ \cdot {d 1}^{2}}

Go Leakage Velocity

v = \frac{Δp \cdot {r s}^{2}}{8 \cdot d l \cdot μ}

How to Evaluate Loss of Liquid Head?

Loss of Liquid Head evaluator uses Loss of Liquid Head = (64*Absolute Viscosity of Oil in Seals*Velocity)/(2*[g]*Density Of Liquid*Outside Diameter of Seal Ring^2) to evaluate the Loss of Liquid Head, Loss of Liquid Head formula is defined as measure of the reduction in the total head of the fluid as it moves through a fluid system. Head loss is unavoidable in real fluids. Loss of Liquid Head is denoted by h_μ symbol.

How to evaluate Loss of Liquid Head using this online evaluator? To use this online evaluator for Loss of Liquid Head, enter Absolute Viscosity of Oil in Seals (μ), Velocity (v), Density Of Liquid (ρ_l) & Outside Diameter of Seal Ring (d₁) and hit the calculate button.

FAQs on Loss of Liquid Head

What is the formula to find Loss of Liquid Head?

The formula of Loss of Liquid Head is expressed as Loss of Liquid Head = (64*Absolute Viscosity of Oil in Seals*Velocity)/(2*[g]*Density Of Liquid*Outside Diameter of Seal Ring^2). Here is an example- 2.6E+6 = (64*0.0078*119.6581)/(2*[g]*997*0.034^2).

How to calculate Loss of Liquid Head?

With Absolute Viscosity of Oil in Seals (μ), Velocity (v), Density Of Liquid (ρ_l) & Outside Diameter of Seal Ring (d₁) we can find Loss of Liquid Head using the formula - Loss of Liquid Head = (64*Absolute Viscosity of Oil in Seals*Velocity)/(2*[g]*Density Of Liquid*Outside Diameter of Seal Ring^2). This formula also uses Gravitational acceleration on Earth constant(s).

Can the Loss of Liquid Head be negative?

Yes, the Loss of Liquid Head, measured in Length can be negative.

Which unit is used to measure Loss of Liquid Head?

Loss of Liquid Head is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Loss of Liquid Head can be measured.

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Loss of Liquid Head Formula

Loss of Liquid Head Example

Loss of Liquid Head Solution

Loss of Liquid Head Formula Elements

Other formulas in Straight Cut Sealings category

How to Evaluate Loss of Liquid Head?

FAQs on Loss of Liquid Head

Variable Name