{"id":3519,"date":"2016-03-27T01:40:00","date_gmt":"2016-03-27T01:40:00","guid":{"rendered":"http:\/\/thales.mit.edu\/bush\/?p=3519"},"modified":"2021-04-15T01:47:45","modified_gmt":"2021-04-15T01:47:45","slug":"non-specular-reflection-of-walking-droplets","status":"publish","type":"post","link":"https:\/\/thales.mit.edu\/bush\/index.php\/2016\/03\/27\/non-specular-reflection-of-walking-droplets\/","title":{"rendered":"Non-specular reflection"},"content":{"rendered":"\n
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A walking drop is reflected from a submerged barrier.<\/figcaption><\/figure><\/div>\n\n\n\n

While the behavior of walking droplets in unbounded geometries has to a large extent been rationalized theoretically, no such rationale exists for their behaviour in the presence of boundaries, as arises in a number of key quantum analogue systems. We here present the results of a combined experimental and theoretical study of the interaction of walking droplets with a submerged planar barrier. Droplets exhibit non-specular reflection, with a small range of reflection angles that is only weakly dependent on the system parameters, including the angle of incidence. The observed behaviour is captured by simulations based on a theoretical model that treats the boundaries as regions of reduced wave speed, and rationalized in terms of momentum considerations.<\/p>\n\n\n\n

See paper: Pucci, Saenz, Faria & Bush (JFM, 2016)  pdf<\/a><\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":5,"featured_media":5176,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,3],"tags":[],"class_list":["post-3519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bouncing-walking","category-pilot-wave-hydrodynamics","entry"],"yoast_head":"\nNon-specular reflection - John W. M. Bush<\/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:\/\/thales.mit.edu\/bush\/index.php\/2016\/03\/27\/non-specular-reflection-of-walking-droplets\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Non-specular reflection - John W. M. Bush\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thales.mit.edu\/bush\/index.php\/2016\/03\/27\/non-specular-reflection-of-walking-droplets\/\" \/>\n<meta property=\"og:site_name\" content=\"John W. M. 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