Recent content by randomy

  1. R

    Difference between wind tunnel and real flight

    Thanks Anomander. Yes agree. Its just that I performed some wind tunnel tests and the static port measurement varied with fan speed. I concluded that there could be 2 reasons for this: 1). Misalignement in the static port (i.e. not exactly in parallel with the air flow) 2). (which is my...
  2. R

    Difference between wind tunnel and real flight

    Yes I understand. But you see in the aircraft the pitot-static tube is far ahead therefore the ''atmospheric pressure is measured'' via the static port, which theoritically would only change with altitude not aircraft speed. In the wind tunnel, if we place a Pitot-static tube far ahead of the...
  3. R

    Difference between wind tunnel and real flight

    What I am basically asking is that in real flight the freestream static pressure would NOT change with airspeed, it would only change with altitude, which is how the altimeter works. BUT in the wind tunnel would the freestream static pressure vary with airspeed coming in?
  4. R

    Difference between wind tunnel and real flight

    Please help: We know that static pressure is the pressure felt when moving with the fluid (air). So in real flight the Pitot-static tube is moving with the aircraft and gives static pressure X (lets call it X). BUT in a wind tunnel the Pitot static tube is fixed (i.e. not moving) and the...
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