FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Absolute Viscosity of Fluid by Ergun Formula

Fx Copy

LaTeX Copy

Absolute Viscosity is the measurement of the fluid's internal resistance to flow. Check FAQs

μ = \frac{D o \cdot U b \cdot ρ}{Re pb \cdot (1 - ∈)}

μ - Absolute Viscosity?D_o - Diameter of Object?U_b - Superficial Velocity?ρ - Density?Re_pb - Reynolds Number(pb)?∈ - Void Fraction?

Absolute Viscosity of Fluid by Ergun Example

With values

With units

Only example

Here is how the Absolute Viscosity of Fluid by Ergun equation looks like with Values.

Here is how the Absolute Viscosity of Fluid by Ergun equation looks like with Units.

Here is how the Absolute Viscosity of Fluid by Ergun equation looks like.

24.925 = \frac{25 \cdot 0.05 \cdot 997}{200 \cdot (1 - 0.75)}

24.925Pa*s = \frac{25m \cdot 0.05m/s \cdot 997kg/m³}{200 \cdot (1 - 0.75)}

24.925 = \frac{25 \cdot 0.05 \cdot 997}{200 \cdot (1 - 0.75)}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Physics » Category

Mechanical » Category

Heat and Mass Transfer » fx Absolute Viscosity of Fluid by Ergun

Absolute Viscosity of Fluid by Ergun Solution

Follow our step by step solution on how to calculate Absolute Viscosity of Fluid by Ergun?

FIRST Step Consider the formula

μ = \frac{D o \cdot U b \cdot ρ}{Re pb \cdot (1 - ∈)}

Next Step Substitute values of Variables

∴

μ = \frac{25m \cdot 0.05m/s \cdot 997kg/m³}{200 \cdot (1 - 0.75)}

Next Step Prepare to Evaluate

∴

μ = \frac{25 \cdot 0.05 \cdot 997}{200 \cdot (1 - 0.75)}

LAST Step Evaluate

∴

μ = 24.925Pa*s

Absolute Viscosity of Fluid by Ergun Formula Elements

Variables

Absolute Viscosity

Absolute Viscosity is the measurement of the fluid's internal resistance to flow.

Symbol: μ

Measurement: Dynamic ViscosityUnit: Pa*s

Note: Value can be positive or negative.

Formulas to find Absolute Viscosity

Diameter of Object

Diameter of Object is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

Symbol: D_o

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Diameter of Object

Superficial Velocity

Superficial Velocity is the volumetric flow rate divided by a cross sectional area.

Symbol: U_b

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Superficial Velocity

Density

The Density 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

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Density

Reynolds Number(pb)

Reynolds number(pb) is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

Symbol: Re_pb

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Reynolds Number(pb)

Void Fraction

Void Fraction is the fraction of the channel volume that is occupied by the gas phase.

Symbol: ∈

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Void Fraction

Other formulas in Flow of Liquids inside Packed Beds category

Go Reynolds Number of Packed Beds by Ergun

Re pb = \frac{D eff \cdot U b \cdot ρ}{μ \cdot (1 - ∈)}

Go Effective Particle Diameter by Ergun given Reynolds Number

D eff = \frac{Re pb \cdot μ \cdot (1 - ∈)}{U b \cdot ρ}

Go Superficial Velocity by Ergun given Reynolds Number

U b = \frac{Re pb \cdot μ \cdot (1 - ∈)}{D eff \cdot ρ}

Go Density of Fluid by Ergun

ρ = \frac{Re pb \cdot μ \cdot (1 - ∈)}{D eff \cdot U b}

How to Evaluate Absolute Viscosity of Fluid by Ergun?

Absolute Viscosity of Fluid by Ergun evaluator uses Absolute Viscosity = (Diameter of Object*Superficial Velocity*Density)/(Reynolds Number(pb)*(1-Void Fraction)) to evaluate the Absolute Viscosity, The Absolute viscosity of fluid by Ergun formula is defined as measurement of fluid's internal resistance to flow. Absolute Viscosity is denoted by μ symbol.

How to evaluate Absolute Viscosity of Fluid by Ergun using this online evaluator? To use this online evaluator for Absolute Viscosity of Fluid by Ergun, enter Diameter of Object (D_o), Superficial Velocity (U_b), Density (ρ), Reynolds Number(pb) (Re_pb) & Void Fraction (∈) and hit the calculate button.

FAQs on Absolute Viscosity of Fluid by Ergun

What is the formula to find Absolute Viscosity of Fluid by Ergun?

The formula of Absolute Viscosity of Fluid by Ergun is expressed as Absolute Viscosity = (Diameter of Object*Superficial Velocity*Density)/(Reynolds Number(pb)*(1-Void Fraction)). Here is an example- 24.925 = (25*0.05*997)/(200*(1-0.75)).

How to calculate Absolute Viscosity of Fluid by Ergun?

With Diameter of Object (D_o), Superficial Velocity (U_b), Density (ρ), Reynolds Number(pb) (Re_pb) & Void Fraction (∈) we can find Absolute Viscosity of Fluid by Ergun using the formula - Absolute Viscosity = (Diameter of Object*Superficial Velocity*Density)/(Reynolds Number(pb)*(1-Void Fraction)).

Can the Absolute Viscosity of Fluid by Ergun be negative?

Yes, the Absolute Viscosity of Fluid by Ergun, measured in Dynamic Viscosity can be negative.

Which unit is used to measure Absolute Viscosity of Fluid by Ergun?

Absolute Viscosity of Fluid by Ergun is usually measured using the Pascal Second[Pa*s] for Dynamic Viscosity. Newton Second per Square Meter[Pa*s], Millinewton Second per Square Meter[Pa*s], Dyne Second per Square Centimeter[Pa*s] are the few other units in which Absolute Viscosity of Fluid by Ergun can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Absolute Viscosity of Fluid by Ergun Formula

Absolute Viscosity of Fluid by Ergun Example

Absolute Viscosity of Fluid by Ergun Solution

Absolute Viscosity of Fluid by Ergun Formula Elements

Other formulas in Flow of Liquids inside Packed Beds category

How to Evaluate Absolute Viscosity of Fluid by Ergun?

FAQs on Absolute Viscosity of Fluid by Ergun

Variable Name