Too funny not to share

jrussl · Nov 28, 2022

A friend posted this question today. I found it too damn funny not to share. Compliments of Ethan B.

If the amount of oil on its outside equals the amount of oil on its inside, then the oil will leak in instead of out, right?

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tzfred · Nov 29, 2022

Well... technically this is incorrect. If the amount outside equals the amount inside then there should be no transfer so you should theoretically have no leak.
Hmmm. Might be worth a try.

jrussl said:
A friend posted this question today. I found it too damn funny not to share. Compliments of Ethan B.

If the amount of oil on its outside equals the amount of oil on its inside, then the oil will leak in instead of out, right?

Sent from my iPad using SuperCub.Org mobile app

frequent_flyer · Nov 29, 2022

tzfred said:
Well... technically this is incorrect. If the amount outside equals the amount inside then there should be no transfer so you should theoretically have no leak.

If you want technical rather than an attempt at humour - the transfer direction and rate do not depend on the quantity/amount inside or outside. What matters is the pressure differential between "outside" and "inside".

tzfred · Nov 29, 2022

Ouch. Well it was an "attempt" at humor. I thought the original post was funny and thought I would add to the conversation obviously related to tracking and fixing leaks on our trusty engines. Just thought the idea that once you spread enough oil on the outside the leak might stop was funny . But I guess it was just me.

Having said that I was led to understand that Bernoulli, using a few very creative boundary conditions simplifies the potential flow equation to give us a simple solution to incompressible flow (most everyday liquid transfers). The leak in fact is related to the sum of the head, the velocity squared, and the pressure on either side of the plane of interest. But thanks for clarifying. I'll step back from this thread now. My apologies to any other readers for taking a light hearted friendly giggle and making it serious but...

wireweinie · Nov 29, 2022

Ranks right up there with 'is the sea level higher in Alaska?'

Web

cubflier · Nov 29, 2022

wireweinie said:
Ranks right up there with 'is the sea level higher in Alaska?'

Web

That's a deep subject.

Jerry

Kid Durango · Nov 29, 2022

I liked it! But I had already run an experiment to check the validity. For years. So I had inside knowledge

mam90 · Nov 30, 2022

It was great. So was your response.

RVBottomly · Nov 30, 2022

Reminds me of my childhood best friend with a homemade truck camper. It had a flat front and gas mileage was around 10 mpg. We rigged up a piece of plywood and braces to direct the air flow over the camper, and suddenly got around 15 mpg.

So, he said, "let's make it bigger. Pretty soon we will be making gas!"

Why not?

mam90 · Nov 30, 2022

Or the 747 that started losing engines over the Atlantic.. every time they lost an engine the Captain would announce that they could continue, but would be progressively later and later to their destination. So they lose the third engine and the Captain assures them they could continue on one, but would now be 3 hours late. A passenger turns to his buddy and says “if we lose that last engine, we’ll be up here all day”…

BC12D-4-85 · Dec 1, 2022

wireweinie said:
Ranks right up there with 'is the sea level higher in Alaska?'

Web

Always there's some smart jazz answer> https://oceanservice.noaa.gov/facts/globalsl.html

Oil leaks are a math function of suck and blow pressure. So, it depends on which side of that you are. In my opinion.

Gary

RVBottomly · Dec 9, 2022

BC12D-4-85 said:
Always there's some smart jazz answer> https://oceanservice.noaa.gov/facts/globalsl.html

Oil leaks are a math function of suck and blow pressure. So, it depends on which side of that you are. In my opinion.

Gary

I was trying to keep my mouth shut on that, but I also think gravity is a little stronger up north, too.

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BC12D-4-85 · Dec 9, 2022

RVBottomly said:
I was trying to keep my mouth shut on that, but I also think gravity is a little stronger up north, too.

Yup! https://en.wikipedia.org/wiki/File:GRACE_globe_animation.gif Instead of 5'9" I'd be taller in the Blue areas.

Gary

skywagon8a · Dec 10, 2022

BC12D-4-85 said:
Yup! https://en.wikipedia.org/wiki/File:GRACE_globe_animation.gif Instead of 5'9" I'd be taller in the Blue areas.

Gary

Does this mean ships need more floatation to cross the north Atlantic than the Pacific?

akavidflyer · Dec 10, 2022

wireweinie said:
Ranks right up there with 'is the sea level higher in Alaska?'

Web

sea level stays the same, the shoreline just raises and falls 30' every 6 hrs.

BC12D-4-85 · Dec 10, 2022

skywagon8a said:
Does this mean ships need more floatation to cross the north Atlantic than the Pacific?

Depends. Floatation is determined by surface water density (a function of temperature and salinity) which can be higher near the colder Polar regions. Any nearshore layer of fresh water from rivers or melting glaciers can affect that some. It's a loaded float aircraft in seawater vs fresh, thing.

Gary

Gordon Misch · Dec 10, 2022

Floatation is determined by surface water density

, multiplied by the local acceleration of gravity. :smile:

BC12D-4-85 · Dec 10, 2022

Oil tank leakage to floating ships at sea....quite a thread drift. Winter in the Arctic causes this.

Here's more on the mystery of floatation. Note a ways down in the article the load lines or Plimsoll marks on ship sides and how they vary under different environmental conditions. Gordon's gravity noted previously affects floated stability....we have lost top heavy crab fishing vessels because of that issue.

Gary

Ab0ngcd · Dec 11, 2022

So which is oilier, Kansas, Nebraska, or Texas? I guess it depends on which sucks or blows and when. Sorry, old Kansas joke about why it is so windy in the state.

Too funny not to share

jrussl

tzfred

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frequent_flyer

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tzfred

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wireweinie

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Kid Durango

mam90

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RVBottomly

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