Questions tagged [aerodynamcs]
The study of how air moves around objects. Usually in reference to minimizing the drag produced on the object in question.
Why are hatchbacks and SUVs' rear window vertical, relative to sedans' at around 45°?
I noticed this angular difference while reading these Quora and Reddit posts about why sedans don't have rear wipers, as the aerodynamic reason fails to remove precipitation as efficaciously as ...
What are these metal pieces on the roof?
My 2019 Hyundai Kona Electric got 2 of those on the roof: I can't find anything on internet about what it is since I don't know the name and what to look for on Google. So what's the name? What's the ...
ECU shielding/ Highway driving
Ok, two qs I was wondering about (completely unrelated): How are ECUs and electronics shielded from all the heat that a car generates, especially when the car is driven in hotter climates (i.e Middle ...
Are there any methods to figure out how aerodynamic a race car is without a Cd number?
For the top speed of a car, I believe it's usually limited by drag and horsepower. However, I've also learned that gearing can affect the top speed and acceleration of a car. Are there any methods to ...
What are these protrusions on lights?
I've seen these small bumps on a number of cars' lights (both front and rear) and was wondering why they are there. The ones pictured below are from a Toyota Auris. Others I have seen are smaller, ...
Can this wing damage cause a car to run/move noticeably/significantly different?
Sometimes my car seems to not feel straight, drag to the left, whirl around and not feel as peppy as before. I'm guessing this is due to a needed wheel alignment. However I have been wondering, ...
Wheel covers for MPG, recommendations
This is more of a pick your collective brain kind of question: I want to create wheel covers for my vehicle, a Civic VX, for increased MPG. I have done some research and what I have found are mostly ...
Why do hybrids have the aesthetic wheel cover on the body?
I've noticed that the manufacturers tend to cover the rear and/or front wheels on the hybrid models more often than the regular vehicles. Are there practical or functional reasons for the covers? Is ...
Why is air buffeting worse for most cars with the rear windows than the front windows?
For my third car in a row (2007 Nissan Altima, 2011 Mazda6, 2011 Infiniti G37), I get awful wind buffeting if I open the rear windows a few inches at any speed greater than 40 MPH. But if I open the ...
Porsche 918 - benefits of top mounted exhaust
Is the Porsche 918 the first production car with a top mount/exiting exhaust system? This article points out that by routing the exhaust up, Porsche was able to equip a completely flat underbelly and ...