Cavitation and Impingement on Rotors
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Cavitation and Impingement on Rotors
Liquids of any type entering the rotor housing will impinge on the rotors. This impingement will cause the liquid molecules to bombard the surfaces they strike. Velocity and forces generated by this will cause damage. Depending on design parameters. If they hit hard enough. Cavitation is generally referenced in hydraulic application such as centrifugal pumps involving a rotor and stator case. There are pumps that are called cavity pumps...
they may have a worm type rotor and a thick rubber stator which is steel cased. On positive displacement pumps impingement can cause intake and exhaust valve damage...All types of composites are utilized..specific to the type of liquids handed. Just from my experience working in the Oil patch. I'm no physicist but I have and do work with High horspower drivers...ie., gas combustion turbines..
Also, Harmonics play a role in impingement. Sound waves are extremely powerful...at the right frequentcies impingment will cause havoc.
Aerodynamic drag will play a role in the laminar, tubular and turbulent flow of the elements entering the vacuum. Hence the assorted claims of air straigthening air flow and increased HP.
I could be wrong..I have been before...Just thought I would post my experience and understanding of a subject often broached.
they may have a worm type rotor and a thick rubber stator which is steel cased. On positive displacement pumps impingement can cause intake and exhaust valve damage...All types of composites are utilized..specific to the type of liquids handed. Just from my experience working in the Oil patch. I'm no physicist but I have and do work with High horspower drivers...ie., gas combustion turbines..
Also, Harmonics play a role in impingement. Sound waves are extremely powerful...at the right frequentcies impingment will cause havoc.
Aerodynamic drag will play a role in the laminar, tubular and turbulent flow of the elements entering the vacuum. Hence the assorted claims of air straigthening air flow and increased HP.
I could be wrong..I have been before...Just thought I would post my experience and understanding of a subject often broached.
Last edited by Twisted99; Feb 26, 2003 at 11:53 AM.
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You mean-here ?
It'd be easier to follow if it were related back to the original "discussion". Although "discussion" might be a strong word in this case.
Do you have some specific thoughts about the noise and blower cavitation? You said, "I could be wrong". Wrong about what?
It seems like you're looking to discuss something. I'm just trying to figure out what...
It'd be easier to follow if it were related back to the original "discussion". Although "discussion" might be a strong word in this case.
Do you have some specific thoughts about the noise and blower cavitation? You said, "I could be wrong". Wrong about what?
It seems like you're looking to discuss something. I'm just trying to figure out what...
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From: Colorado,
Most problems occur when there is a restriction on the suction side of the pump or the flow is controlled from that point. It is better to control fluid flow from the discharge side to prevent implosion and cavitation.
The pressure drop created by restricting the suction side cause the fluid to gas and can be sever enough to cause pitting and eventually destroy the volute and or impeler.
The Lightning 5.4 fluid systems do not create any of the above mentioned problems nor have anything to do with it other than the fact that if the fluid don't move you will soon be spending big $.
Fluid handling and pumps have some interesting problems.
The pressure drop created by restricting the suction side cause the fluid to gas and can be sever enough to cause pitting and eventually destroy the volute and or impeler.
The Lightning 5.4 fluid systems do not create any of the above mentioned problems nor have anything to do with it other than the fact that if the fluid don't move you will soon be spending big $.
Fluid handling and pumps have some interesting problems.