Cavitation speeds?

Inner Sound · 08-23-09, 02:16 AM

Aah, very enlightening. So deeper you go faster you can go without cavitation. That'll not be in the gameplay either tho. Wonder if it'll be in SHV?

They should use my kettle element instead of props - five years its been cavitating away, still looks good.

Rockin Robbins · 08-23-09, 08:09 AM

Someone else would have to explain why boiling water is a relatively gentle procedure, while prop cavitation can be so destructive. THAT part I don't understand clearly. But I've seen lots of evidence on outboard motors' aluminum propellers.

ETR3(SS) · 08-23-09, 08:36 AM

Sea pressure. Part of the noisiness of cavitation is the collapse of the bubbles generated by sea pressure. It's the collapse of those bubbles that causes the damage to the screw. In a boiling pot of water the bubbles reach the surface where they burst into the air.

I'm goin' down · 08-23-09, 04:57 PM

My gums were in pain so I went to the dentist and told him it I thought it was a cavitation problem. He thought I was nuts. That was BEFORE I read this thread.

vickers03 · 08-24-09, 05:26 AM

remember this awesome effect,

found here http://www.subsim.com/radioroom/show...ght=cavitation

Rockin Robbins · 08-24-09, 08:44 AM

Quote:

Originally Posted by ETR3(SS)

Sea pressure. Part of the noisiness of cavitation is the collapse of the bubbles generated by sea pressure. It's the collapse of those bubbles that causes the damage to the screw. In a boiling pot of water the bubbles reach the surface where they burst into the air.

OK! That makes perfect sense, and it explains why the damage is to the high pressure area of the screw. Great post.

Vickers: did that cavitation effect ever get finished and released as a mod? Can you post it in the Subsim downloads area if it did?

ETR3(SS) · 08-24-09, 08:47 AM

It's one of the few things I learned from the boat that I can share with you all.

Sledgehammer427 · 08-24-09, 11:36 AM

Quote:

Originally Posted by Rockin Robbins

Vickers: did that cavitation effect ever get finished and released as a mod? Can you post it in the Subsim downloads area if it did?

well, the post was tied in with a bow splash effect that had everyone freaking out, and the cavitation effect was soon forgotten.

08-23-09, 08:09 AM	#2
Rockin Robbins Navy Seal Join Date: Mar 2007 Location: DeLand, FL Posts: 8,900 Downloads: 135 Uploads: 52	Someone else would have to explain why boiling water is a relatively gentle procedure, while prop cavitation can be so destructive. THAT part I don't understand clearly. But I've seen lots of evidence on outboard motors' aluminum propellers. __________________ Sub Skipper's Bag of Tricks, Slightly Subnuclear Mk 14 & Cutie, Slightly Subnuclear Deck Gun, EZPlot 2.0, TMOPlot, TMOKeys, SH4CMS

08-23-09, 08:36 AM	#3
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	Sea pressure. Part of the noisiness of cavitation is the collapse of the bubbles generated by sea pressure. It's the collapse of those bubbles that causes the damage to the screw. In a boiling pot of water the bubbles reach the surface where they burst into the air. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine.

08-23-09, 04:57 PM	#4
I'm goin' down Ocean Warrior Join Date: Sep 2008 Location: Notify command we have entered the Grass Sea Posts: 2,822 Downloads: 813 Uploads: 0	gee whiz My gums were in pain so I went to the dentist and told him it I thought it was a cavitation problem. He thought I was nuts. That was BEFORE I read this thread.

08-24-09, 08:47 AM	#7
ETR3(SS) Ocean Warrior Join Date: Dec 2007 Location: Between test depth and periscope depth Posts: 3,021 Downloads: 175 Uploads: 16	It's one of the few things I learned from the boat that I can share with you all. __________________ USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine.

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08-23-09, 02:16 AM	#1
Inner Sound Sparky Join Date: Apr 2009 Location: Scotland Posts: 152 Downloads: 25 Uploads: 0	Aah, very enlightening. So deeper you go faster you can go without cavitation. That'll not be in the gameplay either tho. Wonder if it'll be in SHV? They should use my kettle element instead of props - five years its been cavitating away, still looks good.

08-24-09, 05:26 AM	#5
vickers03 Ace of the Deep Join Date: May 2007 Location: germany Posts: 1,000 Downloads: 712 Uploads: 37	remember this awesome effect, found here http://www.subsim.com/radioroom/show...ght=cavitation