Blower

A blower is an installation being used to simulate the aerodynamic conditions of a displacement in the air. One indeed considers that the action of the air on an object in displacement is equivalent to that of the wind generated in the blower on the object, fixed. Very precise measurements there are taken, which is often impossible under the real conditions of displacement.

There exist various types of blowers:

  • Blower with open vein. For example the blower of Gustave Eiffel built in 1912 in Auteuil, which is always in exploitation.
  • Blower on return (like blower S1MA of ONERA with Modane (Savoy).)
  • pressurized Blower
  • cryogenic Blower
  • Intermittent wind tunnel
  • Blower with arc

There exists currently an extremely wide range of blowers, since those where a power of a few kilowatts makes it possible to put moving a fluid vein of a few square decimetres of section, until the blowers of very great dimensions (the section reaches nearly 300 m ² in an American blower) and those with very high speeds, the ones and the others, of a completed technicality.

The largest blower of the world remained a long time that of ONERA to Meudon (120 meters length, 25 meters height), inaugurated in 1929.

External bonds

  • Blower Eiffel
  • Blowers in F1
  • Presentation of the blowers of ONERA
  • Presentation of the blower of Modane
  • Climatic wind tunnel - Rail tce Arsenal (rta - Vienna, AUSTRIA)

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