{"id":214267,"date":"2016-03-22T14:58:35","date_gmt":"2016-03-22T17:58:35","guid":{"rendered":"http:\/\/revistapesquisa.fapesp.br\/?p=214267"},"modified":"2016-03-22T14:58:35","modified_gmt":"2016-03-22T17:58:35","slug":"propulsion-in-the-laboratory","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/propulsion-in-the-laboratory\/","title":{"rendered":"Propulsion in the laboratory"},"content":{"rendered":"<p><a href=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2016\/03\/Fotolab_Injetora-na-bancada.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-214290\" src=\"http:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2016\/03\/Fotolab_Injetora-na-bancada-300x226.jpg\" alt=\"Fotolab_Injetora na bancada\" width=\"300\" height=\"226\" \/><\/a>Despite dozens of tests, aeronautical engineer Rene Nardi only managed once, in this photo, to record the full range of behavior of the liquid that emerges from a cyclone injection system.\u00a0 Often used in rockets and other jet-propelled vehicles, the liquid spins inside a chamber and is then released through a hole, forming a hollow cone.\u00a0\u00a0 The more the cone expands, the thinner the liquid sheet becomes, until it breaks apart and winds up as a cloud of droplets.\u00a0 It is the quick evaporation of these droplets that enables combustion.\u00a0 Nardi perfected a calculation model that accounts for parameters such as\u00a0\u00a0 spray angle (measured in photographs) to characterize the functioning of this injection system and ensure its performance.<\/p>\n<p><em>Photo submitted by Rene Nardi, a doctoral candidate at the Technological Institute of Aeronautics (ITA) advised by Amilcar Porto Pimenta<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"Propulsion in the laboratory","protected":false},"author":475,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[164],"tags":[],"coauthors":[785],"class_list":["post-214267","post","type-post","status-publish","format-standard","hentry","category-photolab"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/214267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=214267"}],"version-history":[{"count":0,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/214267\/revisions"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=214267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=214267"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=214267"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=214267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}