Sentences with phrase «central updraft»
Kellogg sank RAND Corp's 1950s fallout prediction computer model by formulating it in terms of very wooden assumptions (a static mushroom cloud, with particles unaffected by the central updraft and the toroidal downdraft around the periphery), unlike the rival USNRDL «dynamic» or D - model of fallout, which allowed heavy particles to fallout while small ones were still rising.
http://delingpoleworld.com/ Not exact matches
Similar but larger particles are known to play a role in feeding powerful, fast - moving updrafts of air from the land surface to the atmosphere, creating the clouds that play a central role in the formation of water droplets that fall as rain.