cavitation- a deep dive.

[mrsmackpaul]

So I think we are all sort of right and sort of wrong

Cavitation of pumps, which is what I was talking about is different than cavitation in a Cummins around the liners

That been said, I think we are all learning and that is what really matters 

Thanks for the thoughts Vlad

 

Paul

[Vladislav]

You are always welcome Paul. And sure the rest of the crue.

My collage research thesis had relation to centrifugal pumps. Not directly though. I studied mining and my diploma theme was "hydromechanization' - destroying of soft soils by stream of water and than transporting it away in a shape of pulp by big pipes. The pipes were really big, of 500-700mm ID and of 3-4 km of length. Pumps which were sopposed to move such volume of fluid were large correspondingly. And correspondingly expensive were cavitation issues.

The most troubles with the pumps were predicted by regimes they're operated at. The main subject was managing it and the most straight and correct way was setting right revs. But that was a problem at the time (early 90's) since powerful semiconductive devices were unavalible and the pumps spinned at the speeds typical asynchrone electric motors provided. That way speeds of flow in suction and supply pipe lines didn't corellate well bringing cavitation to pumps and settling derbits on bottoms of pipes clogging them.