Lecture - 20 Cavitation

Lecture Series on Performance of Marine Vehicles At Sea by Prof. S. C. Misra and Prof.D. Sen, Department of Ocean Engineering and Naval Architecture, IIT Kharagpur. For more Courses visit http://nptel.iitm.ac.in

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Education

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• Cavitation

[petsatcom]

Great lecture.  I want to see your lecture on Atomization of liquids as well

Thanks

[callmeshane303]

@pelicansnout

Ummm no, the reagent of the DNL molecular structure separate leaving a dipolar constant with a surplus and deficiency of charge constant at each end of the molecule. The charge attractor pulls the anodic metal from the alloy, and the charge repulsor pulls the cathodic metal from the alloy.

It's the collapse of the bubbles causing the fracture of the dipole, that erodes the metal. Not the shockwave.

[Hesham844]

Forza india

[klined]

great video

[Fieldzy14]

@pelicansnout

True, My bad....

[pelicansnout]

@Fieldzy14 NO, Density has absolutely nothing to due with vapor pressure, warmer water will more readily cavitate. The closer the substance is to it's own boiling point, the more cavitation will be observed with the equal amount of physical dynamics compared to the same substance at a lesser thermal constant. But, this scale is NOT infinate and not really linear.

[TheDuke71]

Sounds like Bob Ross in the beginning

[Fieldzy14]

Of course, Cold water is more dense

[Mrpantymelt]

Ive heard of supercavitating Torpedoes, what if steam was ejected from the nose of the Torpedo somehow, I bet it would help.

[Daemo4]

So colder water is less likely to cavitate?