New answers tagged

1

Flutter and vortex induced vibrations (VIV) are both dynamic instabilities arising from the interaction of unsteady aerodynamic, inertial and elastic forces. They both extract energy from the air stream to persist. Instead of perceiving the interaction as aerodynamic forces causing structural motion or structural motion generating aerodynamic forces, it is ...


0

It is important to visualize the flow into this pump is on an axis perpendicular to the plane of the diagram, flowing towards it. The pump spins "clockwise", there for higher pressure will be on the right side of the blades. But the centrifugal pump, true to its name, adds energy to the fluid by its rotation, which slings the fluid to the right. The "...


1

I think what's confusing you is that the text book is using the term circulation to describe speed relative to the average airflow, not actual circulation around the blade. There's still a black arrow pointing outwards on the high pressure side of the blade - no air is travelling inwards. However if you look at the difference between actual speed and the ...


Top 50 recent answers are included