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The Nusselt Number is the ratio of convective to conductive heat transfer at a boundary in a fluid. Convection includes both advection and diffusion. Check FAQs
Nu=0.56((GrePrecos(θ))0.25)
Nu - Nusselt Number?Gre - Grashof Number Property Elavated at Temperature?Pre - Prandtl Number(e) with Property Elevated at Te?θ - Angle with Vertical?

Nusselt number for inclined plates with heated surface facing down Example

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With units
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Here is how the Nusselt number for inclined plates with heated surface facing down equation looks like with Values.

Here is how the Nusselt number for inclined plates with heated surface facing down equation looks like with Units.

Here is how the Nusselt number for inclined plates with heated surface facing down equation looks like.

0.318Edit=0.56((0.6Edit0.2Editcos(30Edit))0.25)
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Nusselt number for inclined plates with heated surface facing down Solution

Follow our step by step solution on how to calculate Nusselt number for inclined plates with heated surface facing down?

FIRST Step Consider the formula
Nu=0.56((GrePrecos(θ))0.25)
Next Step Substitute values of Variables
Nu=0.56((0.60.2cos(30°))0.25)
Next Step Convert Units
Nu=0.56((0.60.2cos(0.5236rad))0.25)
Next Step Prepare to Evaluate
Nu=0.56((0.60.2cos(0.5236))0.25)
Next Step Evaluate
Nu=0.317955247143303
LAST Step Rounding Answer
Nu=0.318

Nusselt number for inclined plates with heated surface facing down Formula Elements

Variables
Functions
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.
Symbol: Nu
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
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.
Symbol: Gre
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
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.
Symbol: Pre
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Angle with Vertical
Angle with vertical are pair angles formed when two lines intersect.
Symbol: θ
Measurement: AngleUnit: °
Note: Value can be positive or negative.
cos
Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.
Syntax: cos(Angle)

Other Formulas to find Nusselt Number

​Go Nusselt number for all value of GrPr and constant heat flux
Nu=(0.825+(0.387((GPr)0.167)(1+(0.437Pr)0.5625)0.296))2
​Go Nusselt number for all value of GrPr and constant wall temperature
Nu=(0.825+(0.387((GPr)0.167)(1+(0.492Pr)0.5625)0.296))2
​Go Nusselt number for turbulent flow
Nu=0.10((GPr)0.333)
​Go Nusselt number for horizontal plate with upper surface heated or lower surface cooled
Nu=0.54((GPr)0.25)

Other formulas in Nusselt Number category

​Go Nusselt number for higher value of GrPr
NuavgL=0.59(GPr)0.25
​Go Nusselt number for both constant wall temperature and heat flux
Nux=0.17((GrxNuPr)0.25)
​Go Nusselt number for horizontal cylinders
NuD=(0.60+(0.387(GrDPr(1+(0.559Pr)0.5625)0.296)0.167))2
​Go Nusselt Number based on Diameter for Horizontal Cylinders
NuD=0.36+(0.518((GrDPr)0.25)(1+(0.559Pr)0.5625)0.444)

How to Evaluate Nusselt number for inclined plates with heated surface facing down?

Nusselt number for inclined plates with heated surface facing down evaluator uses Nusselt Number = 0.56*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te*cos(Angle with Vertical))^0.25) to evaluate the Nusselt Number, The Nusselt number for inclined plates with heated surface facing 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 evaluate Nusselt number for inclined plates with heated surface facing down using this online evaluator? To use this online evaluator for Nusselt number for inclined plates with heated surface facing down, enter Grashof Number Property Elavated at Temperature (Gre), Prandtl Number(e) with Property Elevated at Te (Pre) & Angle with Vertical (θ) and hit the calculate button.

FAQs on Nusselt number for inclined plates with heated surface facing down

What is the formula to find Nusselt number for inclined plates with heated surface facing down?
The formula of Nusselt number for inclined plates with heated surface facing down is expressed as Nusselt Number = 0.56*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te*cos(Angle with Vertical))^0.25). Here is an example- 0.317955 = 0.56*((0.6*0.2*cos(0.5235987755982))^0.25).
How to calculate Nusselt number for inclined plates with heated surface facing down?
With Grashof Number Property Elavated at Temperature (Gre), Prandtl Number(e) with Property Elevated at Te (Pre) & Angle with Vertical (θ) we can find Nusselt number for inclined plates with heated surface facing down using the formula - Nusselt Number = 0.56*((Grashof Number Property Elavated at Temperature*Prandtl Number(e) with Property Elevated at Te*cos(Angle with Vertical))^0.25). This formula also uses Cosine (cos) function(s).
What are the other ways to Calculate Nusselt Number?
Here are the different ways to Calculate Nusselt Number-
  • Nusselt Number=(0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.437/Prandtl Number)^0.5625)^0.296)))^2OpenImg
  • Nusselt Number=(0.825+((0.387*((Grashof Number*Prandtl Number)^0.167))/((1+(0.492/Prandtl Number)^0.5625)^0.296)))^2OpenImg
  • Nusselt Number=0.10*((Grashof Number*Prandtl Number)^0.333)OpenImg
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