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Started By
Message
2
Posted on 4/26/12 at 10:49 am to bbvdd
Posted on 4/26/12 at 10:49 am to AlxTgr
Higher reynolds numbers create larger wakes. If that is wrong than airplanes can't fly.
Posted on 4/26/12 at 10:50 am to bbvdd
quote:
That's not the issue, the issue is that as a boat goes faster less of the boat is in the water to create a wake.
That's true, that still doesn't mean less wake, as there are far more variables at play. What is the hydrodynamic profile of the part in the water? Acting like the wake size is directly proportional to the amount of water displaced is really silly. There is a relationship, yes, but there is also a correlation to relative velocity.
That's beside the point, though. The safety of all involved (not just the tourist tourney fisherman) is my main concern.
Posted on 4/26/12 at 10:51 am to DownshiftAndFloorIt
You're just thinking about it wrong. It's been said 10 times here. There is less and less hull in the water. Less and less water being displaced.
Posted on 4/26/12 at 10:52 am to AlxTgr
quote:
No, it really doesn't.
Yes, it really does.
Posted on 4/26/12 at 10:54 am to Jester
quote:I'm glad I'm not one to believe EVERYTHING that science "claims"
but to say that faster produces a "smaller" wake flies in the face of known science.
It's only theories until someone else comes along and proves its wrong.
Posted on 4/26/12 at 10:54 am to AlxTgr
quote:
You're just thinking about it wrong. It's been said 10 times here. There is less and less hull in the water. Less and less water being displaced.
And more and more speed. Do you know WHY less of the boat is in the water?
The hull is creating potential energy by transferring kinetic energy to the surrounding fluid. To lift the boat higher, it HAS to impart more kinetic energy into the fluid, thus a higher energy wave. The boat is not just magically flying above the water.Posted on 4/26/12 at 10:56 am to The Sportsman
quote:
I'm glad I'm not one to believe EVERYTHING that science "claims"
Willful ignorance is quite sad.Posted on 4/26/12 at 10:56 am to Jester
Gimme some damn formulas.. 
With all variables explained and theoretical values to insert into said equation
I want this solved. I have a chemist meeting but I'll be back in an hour
With all variables explained and theoretical values to insert into said equation
I want this solved. I have a chemist meeting but I'll be back in an hour
Posted on 4/26/12 at 10:57 am to AlxTgr
quote:
Moron.
Now I feel like an expert being asked to debate with Pee Wee Herman.
Posted on 4/26/12 at 10:58 am to Jester
quote:Not relevant.
And more and more speed
quote:Of course.
Do you know WHY less of the boat is in the water?
quote:So?
The hull is creating potential energy by transferring kinetic energy to the surrounding fluid.
quote:What do you think is lifting the hull?
To lift the boat higher, it HAS to impart more kinetic energy into the fluid, thus a higher energy wave.
quote:Look, you don't really understand this at all. I mean, you have the science right, but your using poor assumptions and data.
To lift the boat higher, it HAS to impart more kinetic energy into the fluid, thus a higher energy wave. The boat is not just magically flying above the water.
Posted on 4/26/12 at 10:58 am to The Sportsman
quote:
Gimme some damn formulas..
With all variables explained and theoretical values to insert into said equation
I want this solved. I have a chemist meeting but I'll be back in an hour
Start with Fluid Mechanics by Frank White.
Posted on 4/26/12 at 10:59 am to AlxTgr
Im not thinking about it wrong, just different than you. You are displacing roughly the same amount of water at all speeds when you are on plane unless you run on the skeg wide open. Your wake is just gets longer and narrower at high speed. You're making more wave as you speed up, it's just much longer and narrower
Pay attentiom it next time you run your boat. You can see the waves get longer as you speed up.
Pay attentiom it next time you run your boat. You can see the waves get longer as you speed up.
This post was edited on 4/26/12 at 11:00 am
Posted on 4/26/12 at 11:00 am to Jester
Posted on 4/26/12 at 11:00 am to AlxTgr
quote:
Look, you don't really understand this at all. I mean, you have the science right, but your using poor assumptions and data.
How? I keep providing scientific basis while you keep providing baseless responses. What assumptions are incorrect? The only thing I'm assuming is that water is an incompressible fluid.
Posted on 4/26/12 at 11:02 am to DownshiftAndFloorIt
quote:Here is where we depart. You cannot assume that. It's just not so.
You are displacing roughly the same amount of water at all speeds when you are on plane unless you run on the skeg wide open
quote:If you make the above assumption, which you just cannot do.
You're making more wave as you speed up
Posted on 4/26/12 at 11:02 am to Jester
the same exact boat at faster speeds will displace less water but move water faster creating a very small wake that moves faster and dies out faster...the same boat moving at a slower speed will displace more water creating a higher wake moving at a slower speed...this is how it works
Posted on 4/26/12 at 11:02 am to AlxTgr
quote:
When are you going to wonder why this happens to you so much?
Dunning-Kruger
Wait, so I make you look like an uneducated dumbass, so you have to pull some vague psychiatry reference into a fluid mechanics discussion....Yeah, you win, big man. I'm the worst poster ever...
Posted on 4/26/12 at 11:04 am to DownshiftAndFloorIt
quote:
You are displacing roughly the same amount of water at all speeds when you are on plane unless you run on the skeg wide open.
no you're not, you have more surface of the boat in the water at slower speeds that will displace said water
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