would you drown in big ships wake due to air bubbles lowering density?

Or are those air bubbles but instead water vapor??? Doesn't water vapor instantly re-collapse back into water, hence the "bar tender's least favorite trick"? (slapping the top of a beer bottle with small amount of water in, so a vapor pocket/vacuum forms briefly than sucks the water back down fast enough to neatly brake the bottom of the bottle off, for an instant ash tray, and funnel, combo).

Anyways, if you step off the stern of a ship throwing up a big wake, like a nuclear aircraft carrier going full speed, is the wake of lower density and you'd sink into it for a bit? How much, more or less? Asking for a friend.

 

IF a change of density happens you'd sink in proportionally to that change of density.

 

I crossed the wake of a very large catamaran ferry running from Spain to Africa, powered by jets. The water was so aeriated with bubbles that there was a distinct period of lower immersion, proven by the cockpit back flooding. It was spooky.

Allegedly, escaping gas eruptions is perhaps the probable cause of missing ships within the Bermuda Triangle.

 

What would be different about a large ship's wake and a large breaking surfing wave? The aerated water of the breaker will not support a swimmer to the surface, but given the speed of the passing breakers, and the passing ship, it would only be seconds before normal water buoyancy returned. It is doubtful that someone who could dive off a ship's transom, say forty feet in the air, would sink more than a few feet deeper in the water due to aeration in the wake. The bubbles would swirl around and maybe even cause an upward welling of the water around the jumper. They might even pop up to the surface on their own ten or twenty seconds later.

-Will

 

Large jet drive ferries, when maneuvering in port, create dangerously low density aerated water considered a hazard to navigation.
So the answer is yes, one is much more likely to drown in highly aerated water.

 

I heard smallest ships with float planes in WW2 were cruisers, not because of launching with cat, but because destroyer's wakes were big enough to create smooth enough LZ.

 

4:25 inetresting docking sleds and float hook.Good idea for something .

 

Water vapor and air bubbles are quite different. Water vapor is a gas that forms when water evaporates and it tends to condense back into liquid when cooled, which is what happens in the "bartender’s trick" you mentioned, creating a vacuum that can make the bottom of the bottle break. As for the wake of a large ship, like a nuclear aircraft carrier, the wake itself is made of turbulent water, and while it has lower density compared to the surrounding water, it’s still made of water and not a true “bubble.” If you stepped into it, you wouldn't sink much further than the typical water level. The wake might momentarily feel like a disturbance or a shift, but it wouldn't make you sink noticeably deeper for long. The energy in the wake causes turbulence, but it’s not a significant change in density like sinking into quicksand or something similar.

 

A wipeout on a big wave leaves the surfer in swirling water “too thick to breathe, but too thin to swim in!”
Fortunately, the air rises quickly, usually allowing the unfortunate surfer to surface just in time to get slammed again by the next wave.
I’ve crossed wakes of large ferry boats that left an impressive trail of aerated water. Though I never noted any changes in the waterline, the depth finder readings were momentarily blanked.

 

more questions:
Does much dissolved atmospheric gas get "boiled" out of solution in the low pressure zones of the propeller?
Does this now free gas re-dissolve a lot slower that it came out of solution? I'm thinking it might be microscopic when first coming out of solution in lower pressure, but would form much larger bubbles with much lower surface to volume ratio, thus that a few moments to dissolve, or rise to surface.
I've heard CO2 dissolves very well in water, and ICE exhaust is CO2 and H2O. Would it be easy to make byproducts of combustion disappear into the water by blowing them under a ship's hull? Maybe running them through a long pipe 1/2 filled with outside water?

 

ICEs mostly exhaust CO (Carbon monoxide), Nitric Oxides (NO + NO2)
There is some CO2 and water, as well.

-Will

 

Will, I would respectfully challenge that.
I believe that it is in fact the reverse regarding the CO vs CO2 proportions you claim.

 

In rivers where there are large boulders with water cascading over them, the aerated water creats a drowning hazard due to the lack of buoyancy.

 

https://www.researchgate.net/figure...k-ignition-internal-combustion_tbl1_233532567

I stand corrected.

-Will