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Diameter of thermal entry tube Formula

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The Diameter of Thermal Entry Tube is the width of the tube through which fluid flows, impacting heat transfer efficiency in laminar flow conditions. Check FAQs

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

D_t - Diameter of Thermal Entry Tube?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 t = \frac{L}{0.04 \cdot Re D \cdot Pr}

Next Step Substitute values of Variables

∴

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

Next Step Prepare to Evaluate

∴

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

Next Step Evaluate

∴

D t = 0.0669642857142857m

LAST Step Rounding Answer

∴

D t = 0.067m

Diameter of thermal entry tube Formula Elements

Variables

Diameter of Thermal Entry Tube

The Diameter of Thermal Entry Tube is the width of the tube through which fluid flows, impacting heat transfer efficiency in laminar flow conditions.

Symbol: D_t

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Diameter of Thermal Entry Tube

Length

The Length is the measurement of the distance along the flow direction in a laminar flow scenario within tubes, influencing flow characteristics and heat transfer efficiency.

Symbol: L

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Length

Reynolds Number Dia

The Reynolds Number Dia is a dimensionless quantity that helps predict flow patterns in fluid mechanics, specifically for laminar flow in tubes based on diameter.

Symbol: Re_D

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Reynolds Number Dia

Prandtl Number

The Prandtl Number is a dimensionless quantity that relates the rate of momentum diffusion to thermal diffusion in fluid flow, indicating the relative importance of convection and conduction.

Symbol: Pr

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Prandtl Number

Other formulas in Laminar Flow category

Go Darcy friction factor

df = \frac{64}{Re D}

Go Reynolds Number given Darcy Friction Factor

Re D = \frac{64}{df}

Go Hydrodynamic entry length

L = 0.04 \cdot D hd \cdot Re D

Go Diameter of hydrodynamic entry tube

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

How to Evaluate Diameter of thermal entry tube?

Diameter of thermal entry tube evaluator uses Diameter of Thermal Entry Tube = Length/(0.04*Reynolds Number Dia*Prandtl Number) to evaluate the Diameter of Thermal Entry Tube, Diameter of thermal entry tube formula is defined as a method to determine the diameter of a tube required for optimal thermal entry in laminar flow conditions, ensuring efficient heat transfer in mechanical systems. Diameter of Thermal Entry Tube is denoted by D_t 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 of Thermal Entry Tube = 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 of Thermal Entry Tube = Length/(0.04*Reynolds Number Dia*Prandtl Number).

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

Diameter of thermal entry tube Example

Diameter of thermal entry tube Solution

Diameter of thermal entry tube Formula Elements

Other formulas in Laminar Flow category

How to Evaluate Diameter of thermal entry tube?

FAQs on Diameter of thermal entry tube

Variable Name