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Cloaking Technology Could Protect Offshore Rigs From Destructive Waves
cylonlover writes "Recent years have seen much progress in the development of invisibility cloaks which bend light around an object so it can't be seen, but can the same principles be applied to ocean waves that are strong enough to smash steel and concrete? That's the aim of Reza Alam's underwater 'invisibility cloak.' The assistant professor of mechanical engineering at the University of California, Berkeley, recently outlined how to use variations of density in ocean water to cloak floating objects from dangerous surface waves."
I, however, do know about oceanography. And I know that calling the technology a "cloak" is a joke, it's simply interference. I haven't even taken Physics III and I understand the principles behind the technology. A typical rig has water velocity sensors looking horizontally outward close to the surface and downward on the drillin' axis. Such a "cloak" would be pointless because the rig is pragmatically a fixed structure and bad conditions above are the same as bad conditions below. In short, if shit too wild, either up top or down below, you ain't drillin'. If existing patterns of surface waves were that dangerous to rigs, nobody would be rigging.
Prove me wrong.
-- Ethanol-fueled
I am perpetually impressed by how useful mathematics derived from a few abstract axioms can actually be in modelling the real world. Further, it is always fascinating to see the strange overlaps where a single mathematical abstraction proves useful in the examination of two seemingly unrelated phenomena...
It is apparently so; but the idea that waves made of seawater and 'waves' that function as models of certain aspects of the behavior of electromagnetic radiation is always deeply surprising.
The last one I saw was this: http://www.newscientist.com/article/dn14829
and: http://discovermagazine.com/2012/jul-aug/06-how-to-make-anything-disappear
No credentials other than 5 years of sea duty with the US Navy. A few months of that time were spent on "rough seas". At least a month of that were on seas that came close to those described in "The Perfect Storm" - often exceeding 60 feet, and at times exceeding 80 feet. No hundred foot seas for me, 80 was enough.
Now - are you ready for it?
Neither the waves nor the swells are very random. I don't believe that anyone can predict them with very much accuracy, as of now, but they are generally predictable. Chop is another matter, entirely. If there is any way to predict chop, I can't imagine what it is. But, chop has very little energy, and has almost zero effect on the stability of a ship, or any other large platform.
I highly doubt the effectiveness of this cloaking device, but if it is somehow capable of mitigating some of the water's force, then we can and will develop the software to better predict the actions of swells and waves.
That said - I don't believe any software will be able to take rogues into account. They are named rogues, because they run counter to prevailing seas, seemingly at random.
"Windows is like the faint smell of piss in a subway: it's there, and there's nothing you can do about it." - Charlie Br
Oil rigs are pretty good at exploding on their own without huge waves. we need something to cloak the ocean (and the atmosphere) from from the effects of oil rigs. soviet russia you're our only hope.