Rotational speed of disc Calculator

✖The kinematic Viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.ⓘ Kinematic Viscosity [u]			+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%

✖Rotational Speed the number of turns of the object divided by time, specified as revolutions per minute.ⓘ Rotational speed of disc [w]

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Rotational speed of disc Solution

STEP 0: Pre-Calculation Summary

Formula Used

Rotational Speed = 5*10^5*Kinematic Viscosity/(Diameter^2)
w = 5*10^5*u/(D^2)
This formula uses 3 Variables

Variables Used

Rotational Speed - (Measured in Radian per Second) - Rotational Speed the number of turns of the object divided by time, specified as revolutions per minute.
Kinematic Viscosity - (Measured in Square Meter per Second) - The kinematic Viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid.
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

Kinematic Viscosity: 100 Stokes --> 0.01 Square Meter per Second (Check conversion here)
Diameter: 31.62278 Meter --> 31.62278 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

w = 5*10^5*u/(D^2) --> 5*10^5*0.01/(31.62278^2)

Evaluating ... ...

w = 4.99999892535823

STEP 3: Convert Result to Output's Unit

4.99999892535823 Radian per Second --> No Conversion Required

FINAL ANSWER

4.99999892535823 ≈ 4.999999 Radian per Second <-- Rotational Speed

(Calculation completed in 00.004 seconds)

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Home » Physics » Heat and Mass Transfer » Convection » Free convection » Mechanical » Convective Flow Over Cylinder and Sphere » Rotational speed of disc

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Created by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

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University Institute of Technology RGPV (UIT - RGPV), Bhopal

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< Convective Flow Over Cylinder and Sphere Calculators

Outside surface temperature for annular space between concentric cylinders

Go Outside Temperature = Inside Temperature-(Heat Transfer Per Unit Length*(ln(Outside Diameter/Inside Diameter))/(2*pi*Thermal Conductivity))

Inside surface temperature for annular space between concentric cylinders

Go Inside Temperature = (Heat Transfer Per Unit Length*(ln(Outside Diameter/Inside Diameter))/(2*pi*Thermal Conductivity))+Outside Temperature

Boundary layer thickness on vertical surfaces

Go Boundary Layer Thickness = 3.93*Distance From Point to YY Axis*Prandtl Number^(-0.5)*(0.952+Prandtl Number)^0.25*Local Grashof Number^(-0.25)

Convective mass transfer coefficient at distance X from leading edge

Go Convective Mass Transfer Coefficient = (2*Thermal Conductivity)/Boundary Layer Thickness

Rotational speed of disc Formula

Rotational Speed = 5*10^5*Kinematic Viscosity/(Diameter^2)
w = 5*10^5*u/(D^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 Rotational speed of disc?

Rotational speed of disc calculator uses Rotational Speed = 5*10^5*Kinematic Viscosity/(Diameter^2) to calculate the Rotational Speed, The Rotational speed of disc formula is defined as the number of turns of the object divided by time, specified as revolutions per minute. Rotational Speed is denoted by w symbol.

How to calculate Rotational speed of disc using this online calculator? To use this online calculator for Rotational speed of disc, enter Kinematic Viscosity (u) & Diameter (D) and hit the calculate button. Here is how the Rotational speed of disc calculation can be explained with given input values -> 4.999999 = 5*10^5*0.01/(31.62278^2).

FAQ

What is Rotational speed of disc?

The Rotational speed of disc formula is defined as the number of turns of the object divided by time, specified as revolutions per minute and is represented as w = 5*10^5*u/(D^2) or Rotational Speed = 5*10^5*Kinematic Viscosity/(Diameter^2). The kinematic Viscosity is an atmospheric variable defined as the ratio between the dynamic viscosity μ and the density ρ of the fluid & 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 Rotational speed of disc?

The Rotational speed of disc formula is defined as the number of turns of the object divided by time, specified as revolutions per minute is calculated using Rotational Speed = 5*10^5*Kinematic Viscosity/(Diameter^2). To calculate Rotational speed of disc, you need Kinematic Viscosity (u) & Diameter (D). With our tool, you need to enter the respective value for Kinematic Viscosity & 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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