/sci/ - Science & Math

>>10410566
No, you freak. Gas yourself.

>>10410566
Who is the fast witch?

Diagonal

okay but if the pipes were the same width would
the diagonal pipe still be faster?

>>10410592
you fuckin retarded?

sir we both know I'm ignorant on this topic
Reinstating this fact does not help me learn
And grow as a person.

>>10410566
nah fuck that, it's the weekend I ain't solving navier stokes for you.

>>10410566
Horizontally is the correct answer.

my 15000 psi waterjet going through your skull

>>10410696
Puts a mirror in front of head so the water
Bounces back into you and kills you.

>>10410692
Why is that though?

>>10410581
The area of the diagonal being larger is only relevant in cases where the pipe's length isn't much larger than its width.

>>10410712
Because you get the water to flow from 2 different directions instead of 1 :^)

>>10410712
Because the force of gravity maximally assists the flow of the water. And because the diameter of the pipe is what limits the rate of flow here.

>>10410566
For a steady, Newtonian fluid in a circular pipe, the velocity profile (only considering the axial flow) can be described as: [eqn]v _ { z } ( r ) = 2 U \left[ 1 - \left( \frac { r } { R } \right) ^ { 2 } \right][/eqn] where the max velocity [eqn]U = \frac { R ^ { 2 } } { 8 \mu } \rho g\cos\beta [/eqn] The tube is oriented at angle [math] \beta[/math] ([math] \beta = 0[/math] is completely vertical, [math] \beta = 1[/math] is completely horizontal), which means you have max velocity in a completely vertical tube.

>>10410786
I meant to say "([math]β=0^\circ[/math] is completely vertical, [math]β=90^\circ[/math] is completely horizontal)." This assumes no external pressure gradients too.

>>10410566
Diagonal is faster. This lets a smooth, steady stream of air go back up the tube, instead of the "glugging" motion produced by bubbles in the vertical tube

>>10410823
Just swirl it

>>10410823
The top of the tube is open

>>10410566
>witch

>>10410786
Source/derivation?

>All water(fluids) moves in a spiral motion, never straight lines
- Viktor Schauberger

>>10410566
It costs energy and time to move the water sideways to remove from the diagonal tube. The vertical tube is able to simply accellerate downward and will drain faster.

>assuming the is no air involved and water flows in a closed system
>horizontally water wouldn't flow due to gravity (you'd need pressure difference)
>as you increase the angle diagonally from 0º to 90º, gravity effects appear.
>Being 90º the maximum effect of gravity: water going down vertically

Yes, the outlet area would be larger diagonally, but this effect it's negligible since diameter is is tiny compared to length D<<L

Bernoulli equations can be applied. Potential energy becomes kinetic. With same length, a vertical pipe would have water with more potential energy than a diagonal pipe.

>>10411080
Are that cat and sentient missile aware of the fact that they will also die the moment they catch up to their target?

>>10410566
which force is more powerful ? :
>G
or
>G.cos(α)

fuck off, kid

>>10410566
Vertical, less friction. Would you imagine the water of a tube of water at 1 degree from the horizontal travelling faster than one held at 90 degrees? Obviously not. This is an absolute brainlet question, and shows you have absolutely no desire to think for yourself, despite being autistic enough to waste 10 minutes drawing your OP picture.

>>10410823
this guy gets it

>>10411276
No, the top is open

>>10411277
this guy doesn't get it

>>10411283
this guy doesn't get it

>>10411080
>Source/derivation?
I solved the Navier-Stokes equation with symmetry and no slip boundary conditions. I stated all my assumptions.

>>10411283
this guy doesn't get it
>>10411285
this guy gets it

>>10410566
>being this retarded
Diagonal basically has more resistance than vertical.
So vertical is faster, you glue-eater.

>>10411212
Yes, the cat loves his country. Missiles have no problem esploding.

>>10411431
Diagonal have more area for water to flow

>>10410786
180 IQ post

>>10411431
This is the only correct answer

>>10412221
Only the area perpendicular to the flow direction matters you triple nigger

>>10411204
Held at the same heights, the diagnol does not have more potential than the vertical, they have the same potential energy if they are at the same height.

So the quickest way for water to move
Is straight up and down?