Laminar Flow Fountain

A brief look at my laminar flow nozzle. I haven't covered the low pass filter or the pump or the L.E.D. electronics to light the laminar stream ...... movies to come though everyone :-)

Category:

Howto & Style

Tags:

• Laminar
• Flow
• Fountain

[nardlies1]

I was wanting to know, how did you mount the fiber optics in the center tube without it leaking water. Your videos never show the unit from the back after completion. Great videos i have learned alot from them, keep them coming.

[luckydon1955]

Hi @nardlies1 ...... I passed the three fiberoptic cables through a turned ptfe bung which is sealed into the end of the conduit.

Add ------> h t t p :  / / to the url's below

i794 . photobucket . com/albums/yy229/oldsparky_pho­tobucket/Laminar/ledopticals1 . jpg

i794 . photobucket . com/albums/yy229/oldsparky_pho­tobucket/Laminar/ledopticals2 . jpg

i794 . photobucket . com/albums/yy229/oldsparky_pho­tobucket/Laminar/ledopticals3 . jpg

Happy to hear you're enjoying watching my video's

[accurateled]

I noticed you have a vertical. reservoir tube with an input and output after the pump. This is to stabilize the pressure from the pump's vibration?

It's not enough to swirl the water from the tangential input? You also need the reservoir?

Have you done any experimentation with LED lighting? Im working on that right now actually, a RGB chip that will light up a laminar stream.

[luckydon1955]

The tangential input helps to slow the water's vertical progress through the nozzle.

The 'reservoir tube' you see is acting as a 'low pass filter', a shock-absorber if you will, to absorb the fluctuations in flow rate / pressure from the pump.

Check out my first video ... 'first test of the mk1' ... to see my first attempt at a laminar nozzle, a 4" dia (latest one is 8").

This doesn't yet have a low-pass filter and you can see the pump 'jitter' in the laminar flow.

[luckydon1955]

As far as L.E.D. lighting ...... I've built up a system using 'Pro-Light' 5W L.E.D's ( Red / Green / Blue) .... controlled using an RGB control circuit board.

Check out ...... h t t p : / / w w w . bigclive . com / rgblite . htm

Check out my videos 'LED laminar lighting' .... and 'toolbox_rgb'

I haven't married the two projects together yet .... I'll upload a video when I get around to that. :-)

[kavudiego]

Is this like a hobby for rich physicists?

[worldlighter87]

@luckydon1955 Much in the way that a swirl pot is used in motor sport? IE - Low pressure fuel pump fills swirl pot then secondary pump feeds the engine (although in the case of this jet no secondary pump is in place?)

[PJFIV]

Dear wife,

That is your frying pan splash guard.

Sincerely,

An Asshole

[parrotcentral]

@accurateled The vertical tube you see in his video helps stop pump jitter and smooths out the flow. Pumps as you know can osolate up and down and that would kill the flow. Sort of like a shock absorber. He don't know it but it also gets rid of air bubbles so they don't get in your nozzle. It's also a good way to keep debris from clogging your unit.

[parrotcentral]

@sparker12 The main body is 6 feet long. The 40 inch length barrel plays an important part as well as the other designs. You have allow the water to achieve maximum volocity and the little less than 1 inch barrels I see on youtube doesn't allow for that. I'm trying to get distance as well as laminar flow under high pressure. You will need a fire truck to power up my mega water cannon.

[sparker12]

@parrotcentral can you give me an idea of the design - i am just starting to look at these just for fun i want to make a couple LED jets for pond - with your 6" diameter body does it then come out a one inch nozzle that is 40" long?

[parrotcentral]

@sparker12 Hello, There is 1st the misconception that laminar can only be achieve at a slow flow rate which is false. Laminar water jets that are used to cut 3" steel comes out @ 80,000 lbs. psi. I am presently building one that will sustain a psi of 280 lbs. I am undertaking the building of the largest laminar water nozzle. The body is 6' long and 6" in diameter. Attached to it is a 40" x 1" barrel. Proof of concept test I achieved 300'.

[sparker12]

@parrotcentral Thanks - I was wondering about that - it didn't seem to make sense to laminate and condense the flow and then let it open back up again