{"id":19,"date":"2013-10-09T13:39:59","date_gmt":"2013-10-09T17:39:59","guid":{"rendered":"https:\/\/engineering.jhu.edu\/zaki\/?page_id=19"},"modified":"2020-11-13T11:39:27","modified_gmt":"2020-11-13T16:39:27","slug":"home","status":"publish","type":"page","link":"https:\/\/engineering.jhu.edu\/zaki\/","title":{"rendered":"Transitional and Turbulent Flows"},"content":{"rendered":"<p>Our group&#8217;s research is motivated by the technological and environmental challenges associated with the onset of turbulence and its influence on mixing of momentum, heat and mass. Applications span high-speed flows, aero- and hydro-dynamics, turbo-machinery, heat transfer and materials processing.\u00a0We\u00a0specialize in high-fidelity numerical simulations and data assimilation. Our computational efforts are paralleled\u00a0by complementary analytical and semi-analytical techniques. \u00a0Current research activities include:<\/p>\n<ul>\n<li>Transition prediction in high-speed flows<\/li>\n<li>Interpretation of scarce measurements<\/li>\n<li>Optimal sensing in turbulent environments<\/li>\n<li>Simulations of turbulent\u00a0wall-bounded flows<\/li>\n<li>Flow manipulation and turbulent drag reduction technologies<\/li>\n<li>Machine learning<\/li>\n<li>Stability and turbulence in viscoelastic shear flows<\/li>\n<li>Inhaled drug delivery<\/li>\n<\/ul>\n<p>Our simulations\u00a0rely on accurate\u00a0numerical methods in order to capture in detail the\u00a0flow instabilities which precede the onset of\u00a0turbulence. \u00a0In the fully turbulent regime, the simulations\u00a0must resolve the full spectrum of turbulent scales. \u00a0Our numerical methods are therefore optimized for efficiency, massive parallelism and scalability on\u00a0the most advanced\u00a0high-performance computing facilities.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-419 size-large\" src=\"https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW-1024x450.jpg\" alt=\"Spot_BW\" width=\"625\" height=\"274\" srcset=\"https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW-1024x450.jpg 1024w, https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW-300x132.jpg 300w, https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW-624x274.jpg 624w, https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW.jpg 1061w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Our group&#8217;s research is motivated by the technological and environmental challenges associated with the onset of turbulence and its influence on mixing of momentum, heat and mass. Applications span high-speed flows, aero- and hydro-dynamics, turbo-machinery, heat transfer and materials processing.\u00a0We\u00a0specialize in high-fidelity numerical simulations and data assimilation. Our computational efforts are paralleled\u00a0by complementary analytical and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-19","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Transitional and Turbulent Flows - Flow Science and Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/engineering.jhu.edu\/zaki\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Transitional and Turbulent Flows - Flow Science and Engineering\" \/>\n<meta property=\"og:description\" content=\"Our group&#8217;s research is motivated by the technological and environmental challenges associated with the onset of turbulence and its influence on mixing of momentum, heat and mass. Applications span high-speed flows, aero- and hydro-dynamics, turbo-machinery, heat transfer and materials processing.\u00a0We\u00a0specialize in high-fidelity numerical simulations and data assimilation. Our computational efforts are paralleled\u00a0by complementary analytical and [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/engineering.jhu.edu\/zaki\/\" \/>\n<meta property=\"og:site_name\" content=\"Flow Science and Engineering\" \/>\n<meta property=\"article:modified_time\" content=\"2020-11-13T16:39:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/engineering.jhu.edu\/zaki\/wp-content\/uploads\/2014\/10\/Spot_BW-1024x450.jpg\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/\",\"url\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/\",\"name\":\"Transitional and Turbulent Flows - Flow Science and Engineering\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/wp-content\\\/uploads\\\/2014\\\/10\\\/Spot_BW-1024x450.jpg\",\"datePublished\":\"2013-10-09T17:39:59+00:00\",\"dateModified\":\"2020-11-13T16:39:27+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#primaryimage\",\"url\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/wp-content\\\/uploads\\\/2014\\\/10\\\/Spot_BW.jpg\",\"contentUrl\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/wp-content\\\/uploads\\\/2014\\\/10\\\/Spot_BW.jpg\",\"width\":1061,\"height\":467},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Transitional and Turbulent Flows\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/#website\",\"url\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/\",\"name\":\"Flow Science and Engineering\",\"description\":\"Tamer Zaki&#039;s Research Group\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/engineering.jhu.edu\\\/zaki\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Transitional and Turbulent Flows - Flow Science and Engineering","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/engineering.jhu.edu\/zaki\/","og_locale":"en_US","og_type":"article","og_title":"Transitional and Turbulent Flows - Flow Science and Engineering","og_description":"Our group&#8217;s research is motivated by the technological and environmental challenges associated with the onset of turbulence and its influence on mixing of momentum, heat and mass. 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