VorTech Pump Wave Harmonics

[gumpferloofer]

Right or wrong? v = speed of sound in water = ~1481 meters per second at 20 deg. C. A tube with both ends closed contains half wavelengths, so the whole wavelength in the tank is 2.4 meters. v/λ = f, or speed of sound divided by wavelength = frequency, so the fundamental resonant frequency of the tank on the left is 1481 / 2.4 = 617 Hz or 617 cycles per second. Also the tank on left is showing a 2nd harmonic, not 3rd. Right?

[cale262]

Me thinks I feel sea sick... ;)

[Ctsmith18]

i bet your fish tanks dont last as long as they should with that thing in it constant pounding on the walls weakens the sealant but thats pretty good for an aquarium wave maker

[sirtubemaster]

@Ctsmith18 not a true statement.....if the tank is sealed correctly the wave action will not reduce lifetime on the tank itself or the seals

[IamFreeRu]

cool

[Porre1337]

how do it works :P?

[sirtubemaster]

@Porre1337 intermittent pulsing from one power head to the next...thats what makes it do this

[TimeLapseVFXcom]

Great track. They probably put it on there to cover up the amount of noise these pumps make. Don't buy.

[icfn4tube]

what's the name of the track ? i know it's fatboy slim but what's the remix name?

[akcessdenied]

Shoot... my two big aqua clear powerheads do the same thing... nah just kidding.

[petarst]

try that in 2 meters tank

[WesC888]

longer tanks has longer wavelength.  It actually would allow the pump to provide more energy on each push. The wave would be even higher.

[petarst]

thats stupid vortech cant do that we have tried no power as tunze

[WesC888]

I just received one today. Actually, it's quite easy to figure out the timing. v = f x λ where v is roughly 1m/s for water. For a 48" tank, the f is 1/(48*2.54/100) = 0.8Hz. That's roughly 1.2 second interval. It works for me.

[petarst]

try that in 2 meteres tank full with rocks and sps corals come on be serious

[WesC888]

2 meter tank would have a 2 second interval. Put the powerhead about 2-3 inch below the water line like he did on the 2nd tank. You should have the exact result like the 2nd tank. The 1st tank in this video has TWO of those powerhead. You won't be able to get that big a wave with just one.

[drummergodd]

man thats sik!!

[thrilljunkie08]

that is truly awesome... SPS HEAVEN!!!

[roblox84]

i could just picture all that water spilling above the rim

[corallite]

That is why the water level is so low. This is really just a demonstration and probably too strong a flow for all but the most hardcore flow-luvin corals.

[afatlantispal]

Is it done with only 1 pump? or two are needed?

[inachu]

waves are nice but I think not needed on a 24/7 basis.

[corallite]

What makes you think that corals don't need to breathe or eat at night? Water flow does not decrease at night on wild reefs, nor should it be decreased at night in a captive reef.

[KristinBlackwelder]

I often makes sense, for the fish, to have gentler flow at night. Agreed, corals don't care, but fish do seek out calmer waters to rest at night in the wild.

[sonnytos]

That's why fishes try to sleep between rocks, and in caves, instead the open water. Either in the nature or in the home aquarium. IMO.

Vortech rules, day and night.

[intoxicologist]

@corallite waves are not the same as flow. a wave moves through the water, the water does not actually move much at all. a wave that has travelled from america to the coast of ireland has not brought the water along with it.

in aquariums you would need to keep flow pumps as well to keep the actual water moving past you tank additions and i would not keep wave makers on 24hrs. i would keep the flow pumps on 24 hrs.

[intoxicologist]

@corallite  wavephysics.pdf by michael twardos 2004.

[rz1a]

wheres the overflow box and lr? would like to see it do that on a running RR tank

[lionsroaar]

I had the same question, but I've seen it done successfully. It does work.

[meklo361]

That is out of control I have to get one

[truellas]

thats awesome

[orionreef]

COOL!!!!!!!!!!