Choked flow in control valves is a subject of serious concern for industrial users. The term is usually associated with destructive process conditions that can damage valve internals or expose ...

Beyond the wheel, the most important mechanical equipment serving humanity is the centrifugal pump. Centrifugal pumps make modern quality of life possible. Turn on a faucet and a centrifugal turbine ...

“Life is difficult” is the first sentence from the book The Road Less Travelled by M. Scott Peck. In the same manner, this article starts out, “Flow control is difficult.” If it was not difficult, ...