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Diameter of thermal entry tube Formula

GoDiameter of hydrodynamic entry tube Formula

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

D = \frac{L}{0.04 \cdot Re D \cdot Pr}

D - Diameter?L - Length?Re_D - Reynolds Number Dia?Pr - Prandtl Number?

Diameter of thermal entry tube Example

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Here is how the Diameter of thermal entry tube equation looks like with Values.

Here is how the Diameter of thermal entry tube equation looks like with Units.

Here is how the Diameter of thermal entry tube equation looks like.

0.067 = \frac{3}{0.04 \cdot 1600 \cdot 0.7}

0.067m = \frac{3m}{0.04 \cdot 1600 \cdot 0.7}

0.067 = \frac{3}{0.04 \cdot 1600 \cdot 0.7}

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Diameter of thermal entry tube Solution

Follow our step by step solution on how to calculate Diameter of thermal entry tube?

FIRST Step Consider the formula

D = \frac{L}{0.04 \cdot Re D \cdot Pr}

Next Step Substitute values of Variables

∴

D = \frac{3m}{0.04 \cdot 1600 \cdot 0.7}

Next Step Prepare to Evaluate

∴

D = \frac{3}{0.04 \cdot 1600 \cdot 0.7}

Next Step Evaluate

∴

D = 0.0669642857142857m

LAST Step Rounding Answer

∴

D = 0.067m

Diameter of thermal entry tube Formula Elements

Variables

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

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 Dia

Reynolds Number Dia is the ratio of inertial forces to viscous forces.

Symbol: Re_D

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reynolds Number Dia

Prandtl Number

The Prandtl number (Pr) 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

Other Formulas to find Diameter

Go Diameter of hydrodynamic entry tube

D = \frac{L}{0.04 \cdot Re D}

Other formulas in Laminar Flow category

Go Darcy friction factor

df = \frac{64}{Re D}

Go Reynolds Number given Darcy Friction Factor

Re = \frac{64}{df}

Go Hydrodynamic entry length

L = 0.04 \cdot D \cdot Re D

Go Thermal entry length

L = 0.04 \cdot Re D \cdot D \cdot Pr

How to Evaluate Diameter of thermal entry tube?

Diameter of thermal entry tube evaluator uses Diameter = Length/(0.04*Reynolds Number Dia*Prandtl Number) to evaluate the Diameter, The Diameter of thermal entry tube formula is defined as the size for incoming flow in a pipe to form a temperature profile of stable shape. Diameter is denoted by D symbol.

How to evaluate Diameter of thermal entry tube using this online evaluator? To use this online evaluator for Diameter of thermal entry tube, enter Length (L), Reynolds Number Dia (Re_D) & Prandtl Number (Pr) and hit the calculate button.

FAQs on Diameter of thermal entry tube

What is the formula to find Diameter of thermal entry tube?

The formula of Diameter of thermal entry tube is expressed as Diameter = Length/(0.04*Reynolds Number Dia*Prandtl Number). Here is an example- 0.066964 = 3/(0.04*1600*0.7).

How to calculate Diameter of thermal entry tube?

With Length (L), Reynolds Number Dia (Re_D) & Prandtl Number (Pr) we can find Diameter of thermal entry tube using the formula - Diameter = Length/(0.04*Reynolds Number Dia*Prandtl Number).

What are the other ways to Calculate Diameter?

Here are the different ways to Calculate Diameter-

Diameter=Length/(0.04*Reynolds Number Dia)

Can the Diameter of thermal entry tube be negative?

No, the Diameter of thermal entry tube, measured in Length cannot be negative.

Which unit is used to measure Diameter of thermal entry tube?

Diameter of thermal entry tube is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Diameter of thermal entry tube can be measured.

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Diameter of thermal entry tube Formula

​GoDiameter of hydrodynamic entry tube Formula

Diameter of thermal entry tube Example

Diameter of thermal entry tube Solution

Diameter of thermal entry tube Formula Elements

Other Formulas to find Diameter

Other formulas in Laminar Flow category

How to Evaluate Diameter of thermal entry tube?

FAQs on Diameter of thermal entry tube

Variable Name

GoDiameter of hydrodynamic entry tube Formula