How Do You Calculate Air Resistance in a Simulation?

AI Thread Summary
To calculate air resistance in a simulation of free-falling objects, the Drag Equation is typically used to determine the drag force acting on the object. This equation accounts for factors like the object's velocity and surface area, with drag force generally varying with the square of the velocity. The discussion highlights that there is no universal drag equation, as different scenarios may require specific adjustments. Additionally, data on wind resistance for various surfaces, such as boats and buildings, can provide useful insights for more accurate calculations. Understanding these principles is essential for effectively simulating air resistance in free-fall scenarios.
Crack3n
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Hi, I am currently working on a computer simulation of free falling objects with air resistance..and I am having problems computing for air resistance..can you give me the formula on how to compute it and an example please?..thank you :))
 
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Crack3n said:
Hi, I am currently working on a computer simulation of free falling objects with air resistance..and I am having problems computing for air resistance..can you give me the formula on how to compute it and an example please?..thank you :))
Usually for free fall problems one would use the Drag Equation (see http://en.wikipedia.org/wiki/Drag_equation" ) to compute the drag force acting on the falling object.
 
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Although in general, there is no "drag equation" that applies to everything.
 
I have no idea the level of sophistication you desire, but the force of wind typically varies as the square of the (wind) velocity as an approximation for flat surfaces.

I have seen some chart data regarding flat areas (boat windage) and wind resistance for varying wind speeds used for calculating the force on a boat anchor. Such data must also be available for wind stress design on high rise buildings.
 

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