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Reply To: PhysVelocity in ventury3D


The common approach is to set the characteristic physical velocity to the maximum velocity that is expected to occur during the simulation. For the venturi case this is higher than the imposed inlet velocity of 0.2 m/s.

While 2 m/s is still too large by that measure in the example case this may either be some remnant from earlier versions or there may be a engineering model reason for setting it to this specific value.