How Have Large Vehicles Been Modified for Better Aerodynamics?

AI Thread Summary
Large vehicles such as lorries and trains have undergone various modifications to enhance their aerodynamic efficiency. Key modifications include streamlined shapes, the addition of fairings, and the use of lighter materials to reduce drag. Resources for further research include links to physics forums and engineering websites that detail these aerodynamic principles. Understanding the impact of aerodynamics on fuel efficiency and performance is crucial for these vehicles. Exploring these modifications can provide valuable insights into the physics of large vehicle design.
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Homework Statement


My physics teacher has set me this homework where I have to find out how large vehicles(lorries,trains,etc.) have been modified to be more aerodynamic. please could you just give me some links or pointers to help me finish this task.





2. The attempt at a solution
I have been searching around and have only found links to complicated aerodynamics like:
https://www.physicsforums.com/showthread.php?t=247602
http://www.accessscience.com/abstract.aspx?id=YB031110&referURL=http%3a%2f%2fwww.accessscience.com%2fcontent.aspx%3fid%3dYB031110
and
http://www.redwingengineering.com/vehicle_aero.html
 
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