FormulaDen.com

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

Length given Graetz number Formula

Fx Copy

LaTeX Copy

Length is the measurement or extent of something from end to end. Check FAQs

L = Re \cdot Pr \cdot (\frac{D}{Gr})

L - Length?Re - Reynolds Number?Pr - Prandtl Number?D - Diameter?Gr - Graetz Number?

Length given Graetz number Example

With values

With units

Only example

Here is how the Length given Graetz number equation looks like with Values.

Here is how the Length given Graetz number equation looks like with Units.

Here is how the Length given Graetz number equation looks like.

3 = 5000 \cdot 0.7 \cdot (\frac{0.6857}{800})

3m = 5000 \cdot 0.7 \cdot (\frac{0.6857m}{800})

3 = 5000 \cdot 0.7 \cdot (\frac{0.6857}{800})

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 Length given Graetz number

Length given Graetz number Solution

Follow our step by step solution on how to calculate Length given Graetz number?

FIRST Step Consider the formula

L = Re \cdot Pr \cdot (\frac{D}{Gr})

Next Step Substitute values of Variables

∴

L = 5000 \cdot 0.7 \cdot (\frac{0.6857m}{800})

Next Step Prepare to Evaluate

∴

L = 5000 \cdot 0.7 \cdot (\frac{0.6857}{800})

Next Step Evaluate

∴

L = 2.99999875m

LAST Step Rounding Answer

∴

L = 3m

Length given Graetz number Formula Elements

Variables

Length

Length is the measurement or extent of something from end to end.

Symbol: L

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Length

Reynolds Number

Reynolds Number is a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent.

Symbol: Re

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reynolds Number

Prandtl Number

Prandtl Number or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity.

Symbol: Pr

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Prandtl Number

Diameter

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

Symbol: D

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Diameter

Graetz Number

Graetz number is used in determining the thermally developing flow entrance length in ducts.

Symbol: Gr

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Graetz Number

Other formulas in Graetz and Grashof Number category

Go Grashof Number

G = \frac{F bu}{μ}

Go Graetz Number given System properties

Gr = \frac{D \cdot L c \cdot V c \cdot ρ \cdot c}{k \cdot L}

Go Buoyant force given grashof number

F bu = G \cdot \frac{μ^{2}}{F i}

Go Viscous force given grashofs number

μ = \sqrt{\frac{F bu \cdot F i}{G}}

How to Evaluate Length given Graetz number?

Length given Graetz number evaluator uses Length = Reynolds Number*Prandtl Number*(Diameter/Graetz Number) to evaluate the Length, Length given Graetz number is a dimensionless number used in heat transfer to characterize the thermal development of fluid flow in a duct. Length is denoted by L symbol.

How to evaluate Length given Graetz number using this online evaluator? To use this online evaluator for Length given Graetz number, enter Reynolds Number (Re), Prandtl Number (Pr), Diameter (D) & Graetz Number (Gr) and hit the calculate button.

FAQs on Length given Graetz number

What is the formula to find Length given Graetz number?

The formula of Length given Graetz number is expressed as Length = Reynolds Number*Prandtl Number*(Diameter/Graetz Number). Here is an example- 43.75 = 5000*0.7*(0.685714/800).

How to calculate Length given Graetz number?

With Reynolds Number (Re), Prandtl Number (Pr), Diameter (D) & Graetz Number (Gr) we can find Length given Graetz number using the formula - Length = Reynolds Number*Prandtl Number*(Diameter/Graetz Number).

Can the Length given Graetz number be negative?

No, the Length given Graetz number, measured in Length cannot be negative.

Which unit is used to measure Length given Graetz number?

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

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Length given Graetz number Formula

Length given Graetz number Example

Length given Graetz number Solution

Length given Graetz number Formula Elements

Other formulas in Graetz and Grashof Number category

How to Evaluate Length given Graetz number?

FAQs on Length given Graetz number

Variable Name