## Reynolds Number for Circular Tubes Solution

STEP 0: Pre-Calculation Summary
Formula Used
Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity
Re = ρ*uFluid*DTube/μD
This formula uses 5 Variables
Variables Used
Reynolds Number - Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.
Density - (Measured in Kilogram per Meter³) - Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object.
Fluid Velocity - (Measured in Meter per Second) - Fluid velocity is the volume of fluid flowing in the given vessel per unit cross sectional area.
Diameter of Tube - (Measured in Meter) - Diameter of Tube is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
Dynamic Viscosity - (Measured in Pascal Second) - Dynamic Viscosity of a fluid is the measure of its resistance to flow when an external force is applied.
STEP 1: Convert Input(s) to Base Unit
Density: 997 Kilogram per Meter³ --> 997 Kilogram per Meter³ No Conversion Required
Fluid Velocity: 12 Meter per Second --> 12 Meter per Second No Conversion Required
Diameter of Tube: 9.7 Meter --> 9.7 Meter No Conversion Required
Dynamic Viscosity: 10.2 Pascal Second --> 10.2 Pascal Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Re = ρ*uFluid*DTubeD --> 997*12*9.7/10.2
Evaluating ... ...
Re = 11377.5294117647
STEP 3: Convert Result to Output's Unit
11377.5294117647 --> No Conversion Required
11377.5294117647 <-- Reynolds Number
(Calculation completed in 00.016 seconds)
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Created by Ishan Gupta
Birla Institute of Technology & Science (BITS), Pilani
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## < 10+ Co-Relation of Dimensionless Numbers Calculators

Nusselt Number for Transitional and Rough Flow in Circular Tube
Nusselt Number = (Darcy Friction Factor/8)*(Reynolds Number-1000)*Prandtl Number/(1+12.7*((Darcy Friction Factor/8)^(0.5))*((Prandtl Number)^(2/3)-1)) Go
Stanton Number using Basic Fluid Properties
Stanton Number = External Convection Heat Transfer Coefficient/(Specific Heat Capacity*Fluid Velocity*Density) Go
Reynolds Number for Non-Circular Tubes
Reynolds Number = Density*Fluid Velocity*Characteristic Length/Dynamic Viscosity Go
Reynolds Number for Circular Tubes
Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity Go
Prandtl Number
Prandtl Number = Specific Heat Capacity*Dynamic Viscosity/Thermal Conductivity Go
Stanton Number using Dimensionless Numbers
Stanton Number = Nusselt Number/(Reynolds Number*Prandtl Number) Go
Stanton Number given Fanning Friction Factor
Stanton Number = (Fanning Friction Factor/2)/(Prandtl Number)^(2/3) Go
Nusselt Number Using Dittus Boelter Equation for Cooling
Nusselt Number = 0.023*(Reynolds Number)^0.8*(Prandtl Number)^0.3 Go
Nusselt Number Using Dittus Boelter Equation for Heating
Nusselt Number = 0.023*(Reynolds Number)^0.8*(Prandtl Number)^0.4 Go
Prandtl Number using Diffusivities
Prandtl Number = Momentum Diffusivity/Thermal Diffusivity Go

## Reynolds Number for Circular Tubes Formula

Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity
Re = ρ*uFluid*DTube/μD

## What is Reynolds number?

The Reynolds number is the ratio of inertial forces to viscous forces. The Reynolds number is a dimensionless number used to categorize the fluids systems in which the effect of viscosity is important in controlling the velocities or the flow pattern of a fluid.

## How to Calculate Reynolds Number for Circular Tubes?

Reynolds Number for Circular Tubes calculator uses Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity to calculate the Reynolds Number, Reynolds Number for Circular Tubes computes the Reynolds no. for fluid flow in circular tubes. It is a measure of how laminar or how turbulent the flow is. Reynolds Number is denoted by Re symbol.

How to calculate Reynolds Number for Circular Tubes using this online calculator? To use this online calculator for Reynolds Number for Circular Tubes, enter Density (ρ), Fluid Velocity (uFluid), Diameter of Tube (DTube) & Dynamic Viscosity D) and hit the calculate button. Here is how the Reynolds Number for Circular Tubes calculation can be explained with given input values -> 113775.3 = 997*12*9.7/1.02.

### FAQ

What is Reynolds Number for Circular Tubes?
Reynolds Number for Circular Tubes computes the Reynolds no. for fluid flow in circular tubes. It is a measure of how laminar or how turbulent the flow is and is represented as Re = ρ*uFluid*DTube/μD or Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity. Density of a material shows the denseness of that material in a specific given area. This is taken as mass per unit volume of a given object, Fluid velocity is the volume of fluid flowing in the given vessel per unit cross sectional area, Diameter of Tube is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere & Dynamic Viscosity of a fluid is the measure of its resistance to flow when an external force is applied.
How to calculate Reynolds Number for Circular Tubes?
Reynolds Number for Circular Tubes computes the Reynolds no. for fluid flow in circular tubes. It is a measure of how laminar or how turbulent the flow is is calculated using Reynolds Number = Density*Fluid Velocity*Diameter of Tube/Dynamic Viscosity. To calculate Reynolds Number for Circular Tubes, you need Density (ρ), Fluid Velocity (uFluid), Diameter of Tube (DTube) & Dynamic Viscosity D). With our tool, you need to enter the respective value for Density, Fluid Velocity, Diameter of Tube & Dynamic Viscosity 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 Reynolds Number?
In this formula, Reynolds Number uses Density, Fluid Velocity, Diameter of Tube & Dynamic Viscosity. We can use 1 other way(s) to calculate the same, which is/are as follows -
• Reynolds Number = Density*Fluid Velocity*Characteristic Length/Dynamic Viscosity Let Others Know