Wind Resistance Calculator

✖Exposed Area is the area of the train facing the prevailing wind.It is given in square meters.ⓘ Exposed Area [a]			+10% -10%
✖Velocity of Wind is an air moving from high to low pressure, usually due to changes in temperature that the horizontal movement of air specified by its speed and direction.ⓘ Velocity of Wind [V]			+10% -10%

✖Wind Resistance is the resistance caused due to prevailing wind and it can be divided into two components.One helps in forward motion of the train and the other opposes the motion of the train.ⓘ Wind Resistance [R_w]

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Formula

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Wind Resistance

Formula

`"R"_{"w"} = 0.000017*"a"*"V"^2`

Example

`"10.88"=0.000017*"400m²"*("40km/h")^2`

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Wind Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2
R_w = 0.000017*a*V^2
This formula uses 3 Variables

Variables Used

Wind Resistance - Wind Resistance is the resistance caused due to prevailing wind and it can be divided into two components.One helps in forward motion of the train and the other opposes the motion of the train.
Exposed Area - (Measured in Square Meter) - Exposed Area is the area of the train facing the prevailing wind.It is given in square meters.
Velocity of Wind - (Measured in Kilometer per Hour) - Velocity of Wind is an air moving from high to low pressure, usually due to changes in temperature that the horizontal movement of air specified by its speed and direction.

STEP 1: Convert Input(s) to Base Unit

Exposed Area: 400 Square Meter --> 400 Square Meter No Conversion Required
Velocity of Wind: 40 Kilometer per Hour --> 40 Kilometer per Hour No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_w = 0.000017*a*V^2 --> 0.000017*400*40^2

Evaluating ... ...

R_w = 10.88

STEP 3: Convert Result to Output's Unit

10.88 --> No Conversion Required

FINAL ANSWER

10.88 <-- Wind Resistance

(Calculation completed in 00.014 seconds)

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Credits

Created by Bhuvana Shankar

Parisutham Institute of Technology and Science (PITS), THANJAVUR

Bhuvana Shankar has created this Calculator and 10+ more calculators!

Verified by Rachana B V

The National Institute of Engineering (NIE), Mysuru

Rachana B V has verified this Calculator and 50+ more calculators!

< 9 Traction and Tractive Resistances Calculators

Total Train Resistance

Go Total Train Resistance = 0.0016*Weight of Train+0.00008*Weight of Train* Speed of Train+0.0000006*Weight of Train*Speed of Train^2

Resistance due to Acceleration

Go Resistance due to Acceleration = (0.028*Weight of Train)*(Final Velocity of The Train-Initial Velocity of Train)/(Time Taken to Achieve Final Velocity)

Distance Travelled by Outer Wheels of Railway Vehicle

Go The Distance Travelled by Outer Wheels = (Mean Radius of The Curve of Railway Track+(Gauge of Track/2))*(Angle Substended by Axle of Railway Vehicle)

Distance Travelled by Inner Wheels of Railway Vehicle

Go The Distance Travelled by Inner Wheels = (Mean Radius of The Curve of Railway Track-(Gauge of Track/2))*(Angle Substended by Axle of Railway Vehicle)

Coefficient of Friction for given Hauling Capacity of Locomotive

Go Coefficient of Friction for Locomotive = Hauling Capacity of a Locomotive/(Weight on Driving Axle*No of Pairs of Driving Wheels)

Hauling Capacity of Locomotive

Go Hauling Capacity of a Locomotive = Coefficient of Friction for Locomotive*Weight on Driving Axle*No of Pairs of Driving Wheels

Resistance Due to Gradients

Go Resistance due to Gradients = Weight of Train*(Slope Percentage/100)

Wind Resistance

Go Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2

Resistance due to Starting for Vehicles

Go Resistance due to Starting for Train Vehicle = 0.005*(Weight of Train)

Wind Resistance Formula

Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2
R_w = 0.000017*a*V^2

Why Wind Resistance is considered?

Wind Resistance is considered because it affects the speed of the locomotive.The increase in speed leads to increase in the amount of air resistance.eventually,the force of air resistance becomes large enough to balances the force of gravity.At this instant time,the net force is 0 Newton hence the locomotive will stop accelerating.

How to Calculate Wind Resistance?

Wind Resistance calculator uses Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2 to calculate the Wind Resistance, The Wind Resistance is caused by the prevailing wind.It also depends upon the angle at which the wind impinges the train.Maximum side wind resistance generally occurs when wind is acting at an angle of 60° to the direction of train movement. Wind Resistance is denoted by R_w symbol.

How to calculate Wind Resistance using this online calculator? To use this online calculator for Wind Resistance, enter Exposed Area (a) & Velocity of Wind (V) and hit the calculate button. Here is how the Wind Resistance calculation can be explained with given input values -> 10.88 = 0.000017*400*11.1111111111111^2.

FAQ

What is Wind Resistance?

The Wind Resistance is caused by the prevailing wind.It also depends upon the angle at which the wind impinges the train.Maximum side wind resistance generally occurs when wind is acting at an angle of 60° to the direction of train movement and is represented as R_w = 0.000017*a*V^2 or Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2. Exposed Area is the area of the train facing the prevailing wind.It is given in square meters & Velocity of Wind is an air moving from high to low pressure, usually due to changes in temperature that the horizontal movement of air specified by its speed and direction.

How to calculate Wind Resistance?

The Wind Resistance is caused by the prevailing wind.It also depends upon the angle at which the wind impinges the train.Maximum side wind resistance generally occurs when wind is acting at an angle of 60° to the direction of train movement is calculated using Wind Resistance = 0.000017*Exposed Area*Velocity of Wind^2. To calculate Wind Resistance, you need Exposed Area (a) & Velocity of Wind (V). With our tool, you need to enter the respective value for Exposed Area & Velocity of Wind 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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