Machine-translated by Google. Questions are authored in English.
Top

Discussion

A blowdown wind tunnel differs from a continuous one in that it

  • A.It runs briefly from a charged reservoir
  • B.Runs indefinitely from a compressor
  • C.Cannot reach supersonic speeds
  • D.Requires no nozzle

Answer: A

Storing compressed air and discharging it through the circuit gives high Reynolds and Mach numbers for a modest capital outlay, but run times are measured in seconds or tens of seconds and conditions drift as the reservoir empties. Continuous tunnels cost far more but allow leisurely measurement.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.