Nusselt number for constant heat flux Calculator

✖The Reynolds Number Dia is a dimensionless quantity used to predict flow patterns in fluid mechanics, specifically for turbulent flow in pipes based on diameter.ⓘ Reynolds Number Dia [Re_D]			+10% -10%
✖The Prandtl Number is a dimensionless quantity that relates the rate of momentum diffusion to the rate of thermal diffusion in fluid flow, indicating the relative importance of these processes.ⓘ Prandtl Number [Pr]			+10% -10%

✖The Nusselt Number is a dimensionless quantity that represents the ratio of convective to conductive heat transfer in fluid flow, indicating the efficiency of heat transfer.ⓘ Nusselt number for constant heat flux [Nu]

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Nusselt number for constant heat flux Solution

STEP 0: Pre-Calculation Summary

Formula Used

Nusselt Number = 4.82+0.0185*(Reynolds Number Dia*Prandtl Number)^0.827
Nu = 4.82+0.0185*(Re_D*Pr)^0.827
This formula uses 3 Variables

Variables Used

Nusselt Number - The Nusselt Number is a dimensionless quantity that represents the ratio of convective to conductive heat transfer in fluid flow, indicating the efficiency of heat transfer.
Reynolds Number Dia - The Reynolds Number Dia is a dimensionless quantity used to predict flow patterns in fluid mechanics, specifically for turbulent flow in pipes based on diameter.
Prandtl Number - The Prandtl Number is a dimensionless quantity that relates the rate of momentum diffusion to the rate of thermal diffusion in fluid flow, indicating the relative importance of these processes.

STEP 1: Convert Input(s) to Base Unit

Reynolds Number Dia: 1600 --> No Conversion Required
Prandtl Number: 0.7 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Nu = 4.82+0.0185*(Re_D*Pr)^0.827 --> 4.82+0.0185*(1600*0.7)^0.827

Evaluating ... ...

Nu = 10.9699988299677

STEP 3: Convert Result to Output's Unit

10.9699988299677 --> No Conversion Required

FINAL ANSWER

10.9699988299677 ≈ 10.97 <-- Nusselt Number

(Calculation completed in 00.004 seconds)

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Friction factor for Re greater than 2300

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Friction factor for Re greater than 10000

LaTeX Go Friction Factor = 0.184*Reynolds Number Dia^(-0.2)

Friction factor for transitional turbulent flow

LaTeX Go Friction Factor = 0.316*Reynolds Number Dia^-0.25

Nusselt number for constant heat flux Formula

LaTeX Go

Nusselt Number = 4.82+0.0185*(Reynolds Number Dia*Prandtl Number)^0.827
Nu = 4.82+0.0185*(Re_D*Pr)^0.827

What is Heat Flux?

Heat flux is the rate of heat energy transfer per unit area through a surface. It indicates how quickly heat is being conducted, convected, or radiated in a given direction. Heat flux is crucial in thermal analysis and engineering, helping design systems like heat exchangers, insulation, and cooling mechanisms to manage heat transfer efficiently.

How to Calculate Nusselt number for constant heat flux?

Nusselt number for constant heat flux calculator uses Nusselt Number = 4.82+0.0185*(Reynolds Number Dia*Prandtl Number)^0.827 to calculate the Nusselt Number, The Nusselt number for constant heat flux formula is defined as is a measure of the ratio between heat transfer by convection (α) and heat transfer by conduction alone. Nusselt Number is denoted by Nu symbol.

How to calculate Nusselt number for constant heat flux using this online calculator? To use this online calculator for Nusselt number for constant heat flux, enter Reynolds Number Dia (Re_D) & Prandtl Number (Pr) and hit the calculate button. Here is how the Nusselt number for constant heat flux calculation can be explained with given input values -> 10.97 = 4.82+0.0185*(1600*0.7)^0.827.

FAQ

What is Nusselt number for constant heat flux?

The Nusselt number for constant heat flux formula is defined as is a measure of the ratio between heat transfer by convection (α) and heat transfer by conduction alone and is represented as Nu = 4.82+0.0185*(Re_D*Pr)^0.827 or Nusselt Number = 4.82+0.0185*(Reynolds Number Dia*Prandtl Number)^0.827. The Reynolds Number Dia is a dimensionless quantity used to predict flow patterns in fluid mechanics, specifically for turbulent flow in pipes based on diameter & The Prandtl Number is a dimensionless quantity that relates the rate of momentum diffusion to the rate of thermal diffusion in fluid flow, indicating the relative importance of these processes.

How to calculate Nusselt number for constant heat flux?

The Nusselt number for constant heat flux formula is defined as is a measure of the ratio between heat transfer by convection (α) and heat transfer by conduction alone is calculated using Nusselt Number = 4.82+0.0185*(Reynolds Number Dia*Prandtl Number)^0.827. To calculate Nusselt number for constant heat flux, you need Reynolds Number Dia (Re_D) & Prandtl Number (Pr). With our tool, you need to enter the respective value for Reynolds Number Dia & Prandtl Number and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Nusselt Number?

In this formula, Nusselt Number uses Reynolds Number Dia & Prandtl Number. We can use 3 other way(s) to calculate the same, which is/are as follows -

Nusselt Number = 0.036*(Reynolds Number Dia^0.8)*(Prandtl Number^0.33)*(Diameter/Length)^0.055
Nusselt Number = 0.027*Reynolds Number Dia^0.8*Prandtl Number^0.333*(Dynamic Viscosity at Mean Temperature/Dynamic Viscosity at Wall Temperature)^0.14
Nusselt Number = 5+0.025*(Reynolds Number Dia*Prandtl Number)^0.8

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