## Wind Resistance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Wind resistance = 0.000017*Exposed area*Velocity of wind^2
Rw = 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
Rw = 0.000017*a*V^2 --> 0.000017*400*40^2
Evaluating ... ...
Rw = 10.88
STEP 3: Convert Result to Output's Unit
10.88 --> No Conversion Required
10.88 <-- Wind resistance
(Calculation completed in 00.006 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 0 more calculators!
Verified by Rachana B V
The National Institute of Engineering (NIE), Mysuru
Rachana B V has verified this Calculator and 9 more calculators!

## < 5 Traction and tractive resistances Calculators

Total Train Resistance
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 Go
Coefficient of friction for given hauling capacity of locomotive
Coefficient of Friction for locomotive = Hauling Capacity of a Locomotive/(Weight on driving axle*No of pairs of driving wheels) Go
Hauling Capacity of Locomotive
Hauling Capacity of a Locomotive = Coefficient of Friction for locomotive*Weight on driving axle*No of pairs of driving wheels Go
Resistance Due to Gradients
Resistance due to gradients = Weight of Train*(Slope Percentage/100) Go
Wind Resistance
Wind resistance = 0.000017*Exposed area*Velocity of wind^2 Go

## Wind Resistance Formula

Wind resistance = 0.000017*Exposed area*Velocity of wind^2
Rw = 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 Rw 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 -> 0.839506 = 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 Rw = 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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