Pressure at duct inlet

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Markus J. Kloker

As far as I understand you want to decrease the necessary pressure drop, i.e. the drag -> just let the duct less contract to reduce the maximum flow velocity.

Vedant Kumar

Okay Sir. Thank You.

Balaji Paramasivam

If you have valve present at upstream of Duct than you can adjust(reduce) the value of the Flow Are Multiplier OR Valve Diameter which will bring the pressure down.

The duct will be an open one, so I guess changing the geometry would result in the same.