{"id":4066,"date":"2016-11-30T15:48:51","date_gmt":"2016-11-30T20:48:51","guid":{"rendered":"http:\/\/mseas.mit.edu\/?p=4066"},"modified":"2017-01-19T11:37:54","modified_gmt":"2017-01-19T16:37:54","slug":"tba-4","status":"publish","type":"post","link":"https:\/\/mseas.mit.edu\/?p=4066","title":{"rendered":"Objective Eulerian Coherent Structures in Fluids"},"content":{"rendered":"<span style=\"font-family: AdvP6960; color: black;\">Short-term variability in coherent features of unsteady fluid flows is \u00a0of prime interest in fields ranging from flow control through environmental assessment to search and rescue operations.<\/span>\r\n\r\n<span style=\"font-family: AdvP6960; color: black;\">Available methods for the identification of the instantaneously most influential flow structures, however, are generally \u00a0frame-dependent and heuristic, which\u00a0limits the reliability of the results they provide.\u00a0<\/span>\r\n\r\n<span style=\"font-family: AdvP6960;\">In this talk, we discuss a rigorous global variational theory of objective Eulerian Coherent Structures (OECSs), which uncovers the correct instantaneous material skeleton of an\u00a0unsteady\u00a0fluid \u00a0flow in a frame-invariant fashion.\u00a0<\/span>\r\n\r\n<span style=\"font-family: AdvP6960;\">We show applications to detecting unsteady \u00a0flow structures objectively in satellite-based and radar-inferred ocean surface velocity fields. We find that these structures remain\u00a0generally\u00a0hidden to traditional, non-objective Eulerian flow analysis.<\/span>","protected":false},"excerpt":{"rendered":"<p>Short-term variability in coherent features of unsteady fluid flows is \u00a0of prime interest in fields ranging from flow control through environmental assessment to search and rescue operations. Available methods for the identification of the instantaneously most influential flow structures, however, are generally \u00a0frame-dependent and heuristic, which\u00a0limits the reliability of the results they provide.\u00a0 In this [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[172],"tags":[],"class_list":["post-4066","post","type-post","status-publish","format-standard","hentry","category-spring-2017"],"_links":{"self":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/4066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4066"}],"version-history":[{"count":3,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/4066\/revisions"}],"predecessor-version":[{"id":4102,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/4066\/revisions\/4102"}],"wp:attachment":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}