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|German to English translations [PRO]|
Tech/Engineering - Automotive / Cars & Trucks / automotive
|German term or phrase: Fahrtwind|
|Does anybody have a good translation of "Fahrtwind" (the wind created while driving a car)?|
Thank you for all your help
|airstream, apparent wind (but see detail)|
A couple of dictionaries (including the Oxfored/Duden) give 'arstream' or 'airflow', but I don't think these are adequate. The 'Fahrtwind' is the wind experienced by a vehicle (or a person in a vehicle) as a result of the motion of the vehicle. As far as I know there is not exact equivalent term in English, where it is more common to speak of the effects of this 'wind' (aerodynamic drag, wind resistance etc.)
Depending on your context, you might use 'apparent wind' (but this is the combination of any 'true' wind and the 'own wind' of the moving vehicle) or 'airstream (moving past the vehicle)', but it might be better to use a paraphrase or reword the translation to avoid the use of the term (e.g. use 'aerodyamic drag' in place of 'Widerstand verursacht durch den Fahrtwind').
Headwind is arguably OK in a vernacular context, but technically it means an external wind blowing opposite the direction of travel, not the apparent wind due to the motion of the vehicle (opposite of tail wind).
one example reference:
Have you ever wondered how the wind affects the performance of a Derby racer? You may have seen some interesting results on a gusty race day, when a big ''sled'' somehow beat the ''sure winner''. Let's examine mathematically how this works.
Once a Derby racer gets up to speed it's estimated that aerodynamic drag accounts for over 80% of the total drag an the car. So, as cars approach the finish line, it is common to see the more aerodynamic cars seem to pull away. Since air drag is a highly nonlinear function of apparent wind velocity, and since a Derby has a larger lateral area than frontal area, it appears that there are aerodynamic effects that work to increase the drag forces of crosswinds and even "quartering'' tailwinds. This article describes calculations for the, effects.
The results are interesting:
* The most beneficial wind is not a direct tailwind but a ''quartering'' tailwind of about 30 degrees from the rear.
* The most detrimental wind is not a direct headwind, but rather a ''quartering'' headwind blowing at about 45 degrees to the racer's path.
* Crosswinds are not harmless. A pure crosswind (at 90 degrees to the direction of travel) actually slows a racer down almost as much as a direct headwind.
* ''Marginal'' tailwinds (i.e. winds Making an angle of about 100 degrees to 140 degrees to the direction of the racer) can be either beneficial or detrimental depending on there speed, the speed of the racer, and the design of the racer.
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Local time: 14:07
|The explanations helped the best and gave a clearer picture of what is meant. Thank you so much. |
4 KudoZ points were awarded for this answer
2 mins confidence: peer agreement (net): +3