Reynolds Number given Graetz Number Calculator

✖Graetz Number is used in determining the thermally developing flow entrance length in ducts.ⓘ Graetz Number [Gr]			+10% -10%
✖Length is the measurement or extent of something from end to end.ⓘ Length [L]			+10% -10%
✖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.ⓘ Prandtl Number [Pr]			+10% -10%
✖Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.ⓘ Diameter [D]			+10% -10%

✖Reynolds Number Based on Length is a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent.ⓘ Reynolds Number given Graetz Number [Re_L]

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Reynolds Number given Graetz Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter)
Re_L = Gr*L/(Pr*D)
This formula uses 5 Variables

Variables Used

Reynolds Number Based on Length - Reynolds Number Based on Length is a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent.
Graetz Number - Graetz Number is used in determining the thermally developing flow entrance length in ducts.
Length - (Measured in Meter) - Length is the measurement or extent of something from end to end.
Prandtl Number - 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.
Diameter - (Measured in Meter) - Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

STEP 1: Convert Input(s) to Base Unit

Graetz Number: 800 --> No Conversion Required
Length: 3 Meter --> 3 Meter No Conversion Required
Prandtl Number: 0.7 --> No Conversion Required
Diameter: 3.9 Meter --> 3.9 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Re_L = Gr*L/(Pr*D) --> 800*3/(0.7*3.9)

Evaluating ... ...

Re_L = 879.120879120879

STEP 3: Convert Result to Output's Unit

879.120879120879 --> No Conversion Required

FINAL ANSWER

879.120879120879 ≈ 879.1209 <-- Reynolds Number Based on Length

(Calculation completed in 00.004 seconds)

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< Rayleigh and Reynolds Number Calculators

Rayleigh number based on turbulence for annular space between concentric cylinders

LaTeX Go Rayleigh Number(t) = ((((ln(Outer Diameter/Inner Diameter))^4)*(Rayleigh Number))/((Length^3)*((Inner Diameter^-0.6)+(Outer Diameter^-0.6))^5))

Rayleigh number based on length for annular space between concentric cylinders

LaTeX Go Rayleigh Number = Rayleigh Number(t)/((((ln(Outer Diameter/Inner Diameter))^4))/((Length^3)*((Inner Diameter^-0.6)+(Outer Diameter^-0.6))^5))

Rayleigh number based on turbulence for concentric spheres

LaTeX Go Rayleigh Number(t) = ((Length*Rayleigh Number)/(((Inside Diameter*Outside Diameter)^4)*(((Inside Diameter^-1.4)+(Outside Diameter^-1.4))^5)))^0.25

Reynolds Number given Graetz Number

LaTeX Go Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter)

Reynolds Number given Graetz Number Formula

LaTeX Go

Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter)
Re_L = Gr*L/(Pr*D)

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 Reynolds Number given Graetz Number?

Reynolds Number given Graetz Number calculator uses Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter) to calculate the Reynolds Number Based on Length, The Reynolds Number given Graetz Number formula is defined as a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent. Reynolds Number Based on Length is denoted by Re_L symbol.

How to calculate Reynolds Number given Graetz Number using this online calculator? To use this online calculator for Reynolds Number given Graetz Number, enter Graetz Number (Gr), Length (L), Prandtl Number (Pr) & Diameter (D) and hit the calculate button. Here is how the Reynolds Number given Graetz Number calculation can be explained with given input values -> 879.1209 = 800*3/(0.7*3.9).

FAQ

What is Reynolds Number given Graetz Number?

The Reynolds Number given Graetz Number formula is defined as a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent and is represented as Re_L = Gr*L/(Pr*D) or Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter). Graetz Number is used in determining the thermally developing flow entrance length in ducts, Length is the measurement or extent of something from end to end, 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 & Diameter is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

How to calculate Reynolds Number given Graetz Number?

The Reynolds Number given Graetz Number formula is defined as a dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent is calculated using Reynolds Number Based on Length = Graetz Number*Length/(Prandtl Number*Diameter). To calculate Reynolds Number given Graetz Number, you need Graetz Number (Gr), Length (L), Prandtl Number (Pr) & Diameter (D). With our tool, you need to enter the respective value for Graetz Number, Length, Prandtl Number & Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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