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Right, I'm almost certainly getting this wrong, but most of damage comes from the pressure differential (that is tricky to spell) between one side and the other side of the building, no?
Part 1 is the jet engine has intake ducts leading to it on each side of the building and pressure sensors open
the duct on the side with the most pressure, sucking the air in, and so lowering the pressure, letting it exit to the side with the least pressure.
Part 2 might be for trailers used for housing. They are presumably prone to be lifted off the ground, by putting a rigid skirt around the base of the trailer, part of the jet intake would come from in that skirt, the negative pressure holding the trailer down.
<was poised to say "I've found the metallic hydrogen!!!" but it was a bit of an old chocolate wrapper. The search continues.>
House Scuba
Self_20Contained_20...eathing_20Apparatus
[theircompetitor, Feb 23 2017]
Tornado-in-a-Can
https://www.youtube...watch?v=jsrhU0gRu5U
Might come in handy. [RayfordSteele, Feb 28 2017]
Specific impulse
https://en.wikipedi...ki/Specific_impulse
Relevant [8th of 7, Feb 28 2017]
Pulse jet
https://en.wikipedia.org/wiki/Pulsejet
Low specific impulse. [8th of 7, Feb 28 2017]
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Why not just use the jet engines to fly the trailers to non-tornado locations? |
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I'm sure no harm will come from storing large
containers of jet fuel in every house in areas at
high risk from tornados |
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Given that jet engines, particularly very large ones, are known for being incredibly cheap to buy, own and operate, I think this is an excellent idea. Sadly, the croissant I was about to give you seems to have blown away. |
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Rockets. Solid-fuel rocket motors can be stored for years without deterioration and still ignite on command. Gas turbines need complex ancillary systems - compressed air, lubricants, fuel, electrical - that need routine maintenance even if not used. |
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Isn't this accelerating the wind in the direction it is
already going? Do people really want to donate a few
million extra horsepower to tornados? Anyway,
assuming that they do this idea will contribute to a
tremendous amount of tidying up. Jet engines are
notoriously intolerant of flying debris, as such airfields
have personell engaged in "FOD plods" to pick up any
loose items. This principle will have to be extended,
essentially, to the entire mid west to ensure that
nothing can be picked up by a tornado and flung into an
intake. Given the nature of tornados, the definition of
"foreign object" will have to be expanded to include
Ford F150s, cows, Wal Marts and trains. |
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"Wal, ya know, Ma n' Pa Getchell's got one o' them turr-bine
thingummies whuts sposed to purteckt that dubbel-wide they gots
out on the end of the trailer court, and me and Jed got t' thinkin -
jus' afore noon er so there hain't noboddy home in the whole court,
'cept me n' him - so we goes over there 'n turns it so it's pointed
smack-dab down the court, n' fires it up - holy jee whillikers that
thing is loud! but pretty soon it gets wound up and starts blowin'
stuff 'round and we backs off a piece, 'n then them trailers starts
movin', 'n tippin', 'n rollin'... purty soon the whole bunch of 'em
slides right across the road 'n over the rail tracks! Funniest dam
thing I ever did see!" |
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"Oh, 'n then I sez t' Jed, 'Hey, Jed! Ya' know whut ya call a
homeless redneck?' 'n he sez 'No, whut?' 'n I sez 'Hey, Jed!' Har
har har!" |
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Cheaper to have a smartphone connected to sensors on the walls/ceiling. The app would variously say "okay, hide under the kitchen table... okay, now quick into the doorway... under the bed", depending on shifting wind speeds and directions. |
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I really though this was to kill tornadoes. I think [8th of 7] is
on to something about solid rocket motors and then angling
them against rotation to kill the tornado. |
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//I think [8th of 7] is on to something about solid rocket motors and then angling them against rotation to kill the tornado.// |
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A typical tornado allegedly has about 4PJ of energy in it. Anyone know the energy content of, say, the SRBs of the Space Shuttle system? |
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Yes, you're almost certainly getting it wrong,
unfortunately. |
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It's not only the pressure differential. Tree branches don't
really care about those. It's also the debris flying around. |
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OK, a quick Google suggests that the SRB fuel (with oxidiser) gives about 10MJ/kg, meaning that you'd need about 4 tons of the stuff to match the tornadoe's energy. Which is actually not as bad as I'd expected. |
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It also suggests that a modest rocket with the right sort of nozzle ought to be able to create tornadoes on demand. Somehow, the phrase "Tornado on Demand" is very appealing. |
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// "Tornado on Demand" // |
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Your words move us strangely. |
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// SRB fuel (with oxidiser) gives about 10MJ/kg // |
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You can do better with UDMH and RFNA, but storage is a little more tricky - rather more than the typical "Keep in a cool, dry place" ... |
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If there only were some way to make the tornado do the work that would be used to raise pressure and oppose the tornado. It would be very aikido. |
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I have noted that essentially every movie which has a tornado come heralds the tornado with an ancient rusted windmill that comes squeaking to life. Windmills can power things and so this principle might be used. |
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// an ancient rusted windmill that comes squeaking to life // |
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Not so; sometimes it's a little wooden windmill seemingly cranked by a brightly-coloured wooden marionette.. . |
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There was something i was going to say, but I have forgotten
it... |
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Was it something about Alzheimers, maybe... ? |
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//There was something i was going to say, but I have forgotten it...// |
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Was it, by any chance, "Oh, I've just noticed the typo in the title of this idea, and will fix it immediately"? |
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No, definitely something about Alzheimers ... why did we come in here, anyway ? |
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Where are the car keys ? Is it time for dinner now ? Who's that on the telly ? Who ? No, surely not ... what's happened to that nice Mr. Attlee ... ? |
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Hmm, it's on the tip of my toe.... |
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Yes, I remember, pulse jets....rather less delicate than the jets I had thought of earlier, would need a blower to get them up to speed... |
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And...incidentally jets on planes are not too good with flying debris, but ground-based ones shirley there's a way to clamp a cyclonic* crap extractor on the front? |
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*In a very literal sense. |
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So, a centrifugal tornado filter thingy on the front of the
tornado canceller. That could work. |
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// would need a blower to get them up to speed... // |
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Pulse jets have a low specific impulse. <link>. |
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They can be started in a static mode with no external equipment. |
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The V1 needed a launch system because the Argus was just a sustainer engine; once the missile was at flying speed, the thrust could keep it there. |
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Well yes, if you're running a pulse-jet inside of a house, the tornado outside would cease to be something to worry about. |
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That would rather depend where the input and exhaust are positioned, shirley ? |
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Okay, maybe just most of the windows and glassware, but I don't see the structural integrity beng improved by the process. |
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Everyone's too worried about integrity these days. It's
way overrated. Why, not even the White House has
integrity, so clearly the trailer-parks that are now running
the show have no need for it. |
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Well of course not - integrity is like an ISO9000 registration, it's just something that you get asked if you have, and you say yes and show them the certificate, and then everyone forgets all about it. |
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How about building trailer parks on huge, freely-rotating turntables? Then when the twister strikes, the whole thing can just rotate with it. |
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Well, of course. I'm sure that you can fill in the blank: "It would be
advantageous and useful to be able to periodically ultra-centrifuge a
trailer park to separate off the __________." |
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After all, being the densest, they'll experience the highest forces. |
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Hang on a mo. I thought Trump was a Republican? |
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But, setting that aside, there's one thing I've never understood about these "trailer parks". I've never personally owned a caravan, nor been on a caravanning holiday. But if I did, I like to think that I would have the sense not to take my holiday in a tornado-prone area, during the tornado season. And if I did, and did, and did (respectively), I like to think that I would listen to the weather forecast, notice the word "TORNADO", and pack up and go home. So what, exactly, is the enormous problem? |
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"Well of course not - integrity is like an ISO9000 registration, it's just something that you get asked if you have, and you say yes and show them the certificate, and then everyone forgets all about it." |
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HAHAHAHAHAHAHA ... (deep breath, repeat uncontrolled laughter) ... |
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Okay, now that I can speak again, all I can say is that your world is a lot simpler than mine. Completed surveillance audit to 9001:2008 in December, working on transition to 9001:2015 for the next ten months. |
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If you'd like to do an internship I could use a good minion. |
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Should someone tell [norm] that it's 2017? |
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No, leave him. He's in a little world all of his own, these days. |
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Quality systems will do that to you every time. He's at an early stage- or maybe in remission- note the lack of "!"'s after the HAHAHA. Disturbed, but not yet truly deranged. |
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Just be careful. He clearly doesn't realize he's experiencing a schizoid embolism... yet. |
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I had a quick look at ISO9000. Am I wrong, or is it all about immeasurable, touchy-feely, irrelevant crap like "empowering customers"? And if so, when exactly did we as a species complete the transition from actually doing things to formalized tombollockry? |
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The day after women got the vote, is when - all been downhill since then. |
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<Tiptoes into escape tunnel, quietly closes blast door and locks it> |
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<sighs. Reaches for the blast door remote lock again.> |
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Put some oil on those hinges, looks like their in for a lot of use... |
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//if you're running a pulse-jet inside of a house |
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Right, a set of pulse-jets in descending order of size, like a pipe organ, so you can amuse your neighbours with a rendition of "The Ride of the Valkyries" during the tornado, or just when you can't get to sleep at 2am. |
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... and neither can anyone else in a 10km radius. |
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" I had a quick look at ISO9000. Am I wrong, or is it all about immeasurable, touchy-feely, irrelevant crap " |
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[normzone]: The facts of life. To make alterations in the evolvment of a corporate system is necessary. A process group must be revised once it's been established. |
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The ISO 9001 standard is revised approximately every seven years. ISO 9001:2008 goes obsolete next year, and 9001:2015 is now becoming the norm. |
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The standard is written to be extremely generic, so that it can be used by many kinds of organizations. |
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It does not tell you how to do things, simply that if you wish to hold certification to the system you will do certain things. Such as keeping records of some classes of data, having review and approval authorities defined for some classes of changes, etc. |
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You get to choose how you do these things, as long as you are able to prove that you do them. |
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It's like any other tool. You can do the bare minimum required to obtain the cert and just check the bare boxes, if you have an auditor that will tolerate that. |
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Or you can use the system as it was designed - as a tool for continual improvement. It helps if you have an auditor who expects you to evolve the company over time, rather than just check off the boxes. |
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My job is problem prevention, problem solving, and holding top management's feet to the fire. |
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