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Static or dynamic pressures in duct

  1. Feb 6, 2010 #1
    Hello, I have a little question regarding airflow.

    You have an object in a wind-tunnel, which has a dynamic pressure of 1000Pa and say static pressure of 99000Pa.

    If the object has a duct with static and total pressure probes, to maximise airflow through that duct, would you be looking for the highest or lowest dynamic pressure?

    The way I approach it is, if the dynamic pressure is high the it will cause low static pressure which has the effect of trying to "suck" air though the duct. So a high dynamic pressure in the duct will maximize airflow. Do you guys agree with this?

    Just as an aside, the duct is not exactly in-line with the air flow direction.
  2. jcsd
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