These are the original tornado models for multiple vorticies by Neil Ward & Prof. Fujita from the mid-60s. Conceived after Prof. Fujita studied the damage paths of some of the Palm Sunday tornadoes of 1965 because some seemed to 'skip' houses only completely destroying the next one in it's path.
the rotating screen smooths out the incoming air
xxcurnuxx 2 years ago
C.C Chang i mean
xxcurnuxx 2 years ago
also you can really see the edge of the hole in the Perdue model
xxcurnuxx 2 years ago
Check out a video called "Tornado Machines And More" uploaded by ColonelAngus, you'll see that Neil Ward's model also used rotating screens on the perimeter, but they looked to be moving slowly and were on a very large turn table of some kind, but I don't know of what the mechanisms were used for that model to make it fully functional for studying more advanced swirl ratios and airflows :)
I suspect the same mechanism was used by Prof CC Chang's model, but maybe in an alternative way? :)
WillieDines1 2 years ago
Neil ward didn't make it
professor C.C Chong created that model
xxcurnuxx 2 years ago
Now i understand how a multiple vortex tornado forms :) thanks for uploading.
bmwman87 3 years ago
Thanks for uploading this man :)
The 1 thing I'm wondering is, what mechanism was used to have the rotating outter screens that was used by Niel Ward's vortex machine, but I imagine that these details may be obtained by the NSSL or Perdue University on either of the models used :)
Thank you very much once again for uploading this, you rock dude :)
Top rating always and added to playlist
WillieDines1 3 years ago