{"id":745,"date":"2018-04-11T11:45:14","date_gmt":"2018-04-11T11:45:14","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/fsiblog\/?p=745"},"modified":"2018-04-11T11:45:14","modified_gmt":"2018-04-11T11:45:14","slug":"experimental-testing-of-sailing-hydrofoils","status":"publish","type":"post","link":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/2018\/04\/11\/experimental-testing-of-sailing-hydrofoils\/","title":{"rendered":"Experimental testing of sailing hydrofoils"},"content":{"rendered":"<p>Ben Pickering, a 3rd Year Ship Science student, has been undertaking experimental towing tank testing of a model scale sailing hydrofoil.\u00a0 The aim is to provide validation data for computational predictions of vertical lift, drag and sideforce.<br \/>\n<a href=\"http:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-746\" src=\"http:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510.jpg\" alt=\"\" width=\"4032\" height=\"3024\" srcset=\"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510.jpg 4032w, https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510-300x225.jpg 300w, https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510-768x576.jpg 768w, https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510-1024x768.jpg 1024w, https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-content\/uploads\/sites\/363\/2018\/04\/IMG_6510-1568x1176.jpg 1568w\" sizes=\"auto, (max-width: 4032px) 100vw, 4032px\" \/><\/a><br \/>\nBen developed a system to measure the vertical forces and used the existing dynamometry to acquire the drag and sideforce.\u00a0 The rig allowed for various angles of yaw, rake and cant of the foil.\u00a0 Below is a video of a single run in the towing tank.<br \/>\n<iframe loading=\"lazy\" title=\"Pickering foiling\" width=\"474\" height=\"267\" src=\"https:\/\/www.youtube.com\/embed\/oPNV0pIHFec?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><br \/>\nThere are limitations to the scale of hydrofoil that can be tested due to the large rolling moments produced compared to normal ship resistance testing.\u00a0 The next stage will be to investigate foiling specific dynamometry for use at larger scales and the measurement of deformations visible in the video above.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ben Pickering, a 3rd Year Ship Science student, has been undertaking experimental towing tank testing of a model scale sailing hydrofoil.\u00a0 The aim is to provide validation data for computational predictions of vertical lift, drag and sideforce. Ben developed a system to measure the vertical forces and used the existing dynamometry to acquire the drag &hellip; <a href=\"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/2018\/04\/11\/experimental-testing-of-sailing-hydrofoils\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Experimental testing of sailing hydrofoils<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":4067,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,11,20],"class_list":["post-745","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-foiling","tag-hydrofoil","tag-maritime-engineering","tag-ship-science"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/posts\/745","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/users\/4067"}],"replies":[{"embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/comments?post=745"}],"version-history":[{"count":0,"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/posts\/745\/revisions"}],"wp:attachment":[{"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/media?parent=745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/categories?post=745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/generic.wordpress.soton.ac.uk\/maritimeblog\/wp-json\/wp\/v2\/tags?post=745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}