Nusselt Number based on Length for Rectangular Cavities Solution

STEP 0: Pre-Calculation Summary
Formula Used
Nusselt Number(L) Based on Length = 0.069*(Rayleigh Number Based on Length^0.333)*(Prandtl Number^0.074)
NuL = 0.069*(RaL^0.333)*(Pr^0.074)
This formula uses 3 Variables
Variables Used
Nusselt Number(L) Based on Length - Nusselt Number(L) Based on Length is the ratio of convective to conductive heat transfer across a boundary.
Rayleigh Number Based on Length - Rayleigh Number Based on Length is a dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom.
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.
STEP 1: Convert Input(s) to Base Unit
Rayleigh Number Based on Length: 0.35 --> No Conversion Required
Prandtl Number: 0.7 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
NuL = 0.069*(RaL^0.333)*(Pr^0.074) --> 0.069*(0.35^0.333)*(0.7^0.074)
Evaluating ... ...
NuL = 0.047376285200991
STEP 3: Convert Result to Output's Unit
0.047376285200991 --> No Conversion Required
FINAL ANSWER
0.047376285200991 0.047376 <-- Nusselt Number(L) Based on Length
(Calculation completed in 00.005 seconds)

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Nusselt Number Calculators

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Nusselt number for all value of GrPr and constant heat flux
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Nusselt number for higher value of GrPr
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Nusselt number for turbulent flow
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Nusselt Number based on Length for Rectangular Cavities Formula

​LaTeX ​Go
Nusselt Number(L) Based on Length = 0.069*(Rayleigh Number Based on Length^0.333)*(Prandtl Number^0.074)
NuL = 0.069*(RaL^0.333)*(Pr^0.074)

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 based on Length for Rectangular Cavities?

Nusselt Number based on Length for Rectangular Cavities calculator uses Nusselt Number(L) Based on Length = 0.069*(Rayleigh Number Based on Length^0.333)*(Prandtl Number^0.074) to calculate the Nusselt Number(L) Based on Length, The Nusselt Number based on Length for Rectangular Cavities formula is defined as the ratio of convective to conductive heat transfer across a boundary. Nusselt Number(L) Based on Length is denoted by NuL symbol.

How to calculate Nusselt Number based on Length for Rectangular Cavities using this online calculator? To use this online calculator for Nusselt Number based on Length for Rectangular Cavities, enter Rayleigh Number Based on Length (RaL) & Prandtl Number (Pr) and hit the calculate button. Here is how the Nusselt Number based on Length for Rectangular Cavities calculation can be explained with given input values -> 0.047376 = 0.069*(0.35^0.333)*(0.7^0.074).

FAQ

What is Nusselt Number based on Length for Rectangular Cavities?
The Nusselt Number based on Length for Rectangular Cavities formula is defined as the ratio of convective to conductive heat transfer across a boundary and is represented as NuL = 0.069*(RaL^0.333)*(Pr^0.074) or Nusselt Number(L) Based on Length = 0.069*(Rayleigh Number Based on Length^0.333)*(Prandtl Number^0.074). Rayleigh Number Based on Length is a dimensionless parameter that is a measure of the instability of a layer of fluid due to differences of temperature and density at the top and bottom & 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.
How to calculate Nusselt Number based on Length for Rectangular Cavities?
The Nusselt Number based on Length for Rectangular Cavities formula is defined as the ratio of convective to conductive heat transfer across a boundary is calculated using Nusselt Number(L) Based on Length = 0.069*(Rayleigh Number Based on Length^0.333)*(Prandtl Number^0.074). To calculate Nusselt Number based on Length for Rectangular Cavities, you need Rayleigh Number Based on Length (RaL) & Prandtl Number (Pr). With our tool, you need to enter the respective value for Rayleigh Number Based on Length & 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(L) Based on Length?
In this formula, Nusselt Number(L) Based on Length uses Rayleigh Number Based on Length & Prandtl Number. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Nusselt Number(L) Based on Length = (0.22*((Prandtl Number*Rayleigh Number Based on Length)/(0.2+Prandtl Number))^0.28)*(Height of Crack/Length)^-0.25
  • Nusselt Number(L) Based on Length = (0.18*((Prandtl Number*Rayleigh Number Based on Length)/(0.2+Prandtl Number))^0.29)
  • Nusselt Number(L) Based on Length = 0.42*(Rayleigh Number Based on Length^0.25)*(Prandtl Number^0.012)*(Height of Crack/Length)^-0.3
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