Nusselt number for heated surface down Calculator

✖Grashof Number Property Elavated at Temperature is a dimensionless number in fluid dynamics and heat transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid.ⓘ Grashof Number Property Elavated at Temperature [Gr_e]			+10% -10%
✖Prandtl Number(e) with Property Elevated at Te is defined as the ratio of momentum diffusivity to thermal diffusivity.ⓘ Prandtl Number(e) with Property Elevated at Te [Pre]			+10% -10%

✖The Nusselt Number is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection and diffusion.ⓘ Nusselt number for heated surface down [Nu]

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Nusselt number for heated surface down Solution

STEP 0: Pre-Calculation Summary

Formula Used

Nusselt Number = 0.58*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te)^0.2)
Nu = 0.58*((Gr_e*Pre)^0.2)
This formula uses 3 Variables

Variables Used

Nusselt Number - The Nusselt Number is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection and diffusion.
Grashof Number Property Elavated at Temperature - Grashof Number Property Elavated at Temperature is a dimensionless number in fluid dynamics and heat transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid.
Prandtl Number(e) with Property Elevated at Te - Prandtl Number(e) with Property Elevated at Te is defined as the ratio of momentum diffusivity to thermal diffusivity.

STEP 1: Convert Input(s) to Base Unit

Grashof Number Property Elavated at Temperature: 0.6 --> No Conversion Required
Prandtl Number(e) with Property Elevated at Te: 0.2 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Nu = 0.58*((Gr_e*Pre)^0.2) --> 0.58*((0.6*0.2)^0.2)

Evaluating ... ...

Nu = 0.379545846165918

STEP 3: Convert Result to Output's Unit

0.379545846165918 --> No Conversion Required

FINAL ANSWER

0.379545846165918 ≈ 0.379546 <-- Nusselt Number

(Calculation completed in 00.004 seconds)

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< Nusselt Number Calculators

Nusselt number for all value of GrPr and constant wall temperature

LaTeX Go Nusselt Number = (0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.492/Prandtl Number)^0.5625)^0.296)))^2

Nusselt number for all value of GrPr and constant heat flux

LaTeX Go Nusselt Number = (0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.437/Prandtl Number)^0.5625)^0.296)))^2

Nusselt number for higher value of GrPr

LaTeX Go Average Nusselt Number upto L = 0.59*(Grashof Number*Prandtl Number)^0.25

Nusselt number for turbulent flow

LaTeX Go Nusselt Number = 0.10*((Grashof Number*Prandtl Number)^0.333)

Nusselt number for heated surface down Formula

LaTeX Go

Nusselt Number = 0.58*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te)^0.2)
Nu = 0.58*((Gr_e*Pre)^0.2)

What is convection

Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. The initial heat transfer between the object and the fluid takes place through conduction, but the bulk heat transfer happens due to the motion of the fluid.
Convection is the process of heat transfer in fluids by the actual motion of matter.
It happens in liquids and gases.
It may be natural or forced.
It involves a bulk transfer of portions of the fluid.

How to Calculate Nusselt number for heated surface down?

Nusselt number for heated surface down calculator uses Nusselt Number = 0.58*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te)^0.2) to calculate the Nusselt Number, The Nusselt number for heated surface down formula is defined as the ratio of convective to conductive heat transfer across a boundary. Nusselt Number is denoted by Nu symbol.

How to calculate Nusselt number for heated surface down using this online calculator? To use this online calculator for Nusselt number for heated surface down, enter Grashof Number Property Elavated at Temperature (Gr_e) & Prandtl Number(e) with Property Elevated at Te (Pre) and hit the calculate button. Here is how the Nusselt number for heated surface down calculation can be explained with given input values -> 0.379546 = 0.58*((0.6*0.2)^0.2).

FAQ

What is Nusselt number for heated surface down?

The Nusselt number for heated surface down formula is defined as the ratio of convective to conductive heat transfer across a boundary and is represented as Nu = 0.58*((Gr_e*Pre)^0.2) or Nusselt Number = 0.58*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te)^0.2). Grashof Number Property Elavated at Temperature is a dimensionless number in fluid dynamics and heat transfer which approximates the ratio of the buoyancy to viscous force acting on a fluid & Prandtl Number(e) with Property Elevated at Te is defined as the ratio of momentum diffusivity to thermal diffusivity.

How to calculate Nusselt number for heated surface down?

The Nusselt number for heated surface down formula is defined as the ratio of convective to conductive heat transfer across a boundary is calculated using Nusselt Number = 0.58*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te)^0.2). To calculate Nusselt number for heated surface down, you need Grashof Number Property Elavated at Temperature (Gr_e) & Prandtl Number(e) with Property Elevated at Te (Pre). With our tool, you need to enter the respective value for Grashof Number Property Elavated at Temperature & Prandtl Number(e) with Property Elevated at Te 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 Grashof Number Property Elavated at Temperature & Prandtl Number(e) with Property Elevated at Te. We can use 3 other way(s) to calculate the same, which is/are as follows -

Nusselt Number = (0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.437/Prandtl Number)^0.5625)^0.296)))^2
Nusselt Number = (0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.492/Prandtl Number)^0.5625)^0.296)))^2
Nusselt Number = 0.10*((Grashof Number*Prandtl Number)^0.333)

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