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Model support interference is corrected for because the sting or strut

  • A.Adds weight to the balance reading
  • B.Changes the tunnel's turbulence level
  • C.Heats the model
  • D.It alters the flow near the base

Answer: D

A sting entering through the base changes the base pressure and the near wake, and a strut disturbs the flow around it. The usual remedy is to repeat the run with a dummy support present and subtract the difference, which isolates the interference.

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