Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The air far upstream of an aerodynamic body, i.e. before the body has a chance to deflect, slow down or compress the air.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

free +‎ stream

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Examples

  • This reduces the pressure differential between the diffuser and freestream making the rear of the car more efficient - the wing acts to pump the diffuser.

    F1 Fanatic - The Formula 1 Blog 2010

Comments

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