{"id":166416,"date":"2023-06-25T20:22:56","date_gmt":"2023-06-26T01:22:56","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/06\/spatiotemporal-signatures-of-elastoinertial-turbulence-in-viscoelastic-planar-jets"},"modified":"2023-06-25T20:22:56","modified_gmt":"2023-06-26T01:22:56","slug":"spatiotemporal-signatures-of-elastoinertial-turbulence-in-viscoelastic-planar-jets","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/06\/spatiotemporal-signatures-of-elastoinertial-turbulence-in-viscoelastic-planar-jets","title":{"rendered":"Spatiotemporal signatures of elastoinertial turbulence in viscoelastic planar jets"},"content":{"rendered":"<p><a class=\"blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/spatiotemporal-signatures-of-elastoinertial-turbulence-in-viscoelastic-planar-jets2.jpg\"><\/a><\/p>\n<p>The interplay between viscoelasticity and inertia in dilute polymer solutions at high deformation rates can result in inertio-elastic instabilities. We show how fluid elasticity has a nonmonotonic effect on jet stability depending on magnitude, creating two distinct regimes. The nonlinear evolution of these instabilities generates a state of elasto-inertial turbulence (EIT) with different spatiotemporal features than Newtonian turbulence. We use high-speed digital schlieren imaging and dynamic mode decomposition to quantify EIT and identify two modes of instability which can lead to a transition to turbulence at a lower Reynolds number with flow-aligned structures in the turbulent region.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The interplay between viscoelasticity and inertia in dilute polymer solutions at high deformation rates can result in inertio-elastic instabilities. We show how fluid elasticity has a nonmonotonic effect on jet stability depending on magnitude, creating two distinct regimes. The nonlinear evolution of these instabilities generates a state of elasto-inertial turbulence (EIT) with different spatiotemporal features [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[385],"tags":[],"class_list":["post-166416","post","type-post","status-publish","format-standard","hentry","category-evolution"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/166416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=166416"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/166416\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=166416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=166416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=166416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}