{"id":808,"date":"2009-06-16T14:08:13","date_gmt":"2009-06-16T14:08:13","guid":{"rendered":"http:\/\/dev.blogs.soton.ac.uk\/serg\/?p=808"},"modified":"2013-12-18T10:45:55","modified_gmt":"2013-12-18T10:45:55","slug":"a-new-approach-to-tidal-stream-energy-resource-assessment","status":"publish","type":"post","link":"https:\/\/blog.soton.ac.uk\/serg\/a-new-approach-to-tidal-stream-energy-resource-assessment\/","title":{"rendered":"A new approach to tidal stream energy resource assessment"},"content":{"rendered":"<h3>Title:\u00a0A new approach to tidal stream energy resource assessment<\/h3>\n<h3>Researcher: Luke Blunden<\/h3>\n<h3>Supervisor: AbuBakr Bahaj<\/h3>\n<p>&nbsp;<\/p>\n<h2>Abstract<\/h2>\n<p>Tidal stream power generation offers the prospect of predictable,\u00a0low-CO\u2082 power at a number of locations around the UK and the\u00a0world.\u00a0 Previous assessments of tidal energy resources have taken\u00a0the form of desk studies based on simplified navigational data.\u00a0Where numerical model data has been used it has been at too low a\u00a0resolution to capture high velocity tidal flows constrained by\u00a0coastal topography. Analytical solutions for maximum energy\u00a0extraction in simple tidal channels have been produced, but they\u00a0have not been extended to more complex open-boundary cases such as\u00a0flow around headlands and islands. There is therefore a role for<br \/>\nsite-specific numerical modelling, which when validated, offers\u00a0the twin advantages of a high-resolution picture of the resource\u00a0and allowing simulation of momentum extraction within the model to\u00a0take place.<\/p>\n<p>In order to parameterize the sub-grid-scale momentum extraction\u00a0in such models, a new analytical model of the velocity reduction\u00a0in a large array of tidal turbines has been derived. The model\u00a0extends previous models of large wind turbine arrays and uses\u00a0analogies with flow through submerged vegetation. It provides an\u00a0equivalent added drag coefficient suitable for use in a 2-D\u00a0coastal numerical model.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Title:\u00a0A new approach to tidal stream energy resource assessment Researcher: Luke Blunden Supervisor: AbuBakr Bahaj &nbsp; Abstract Tidal stream power generation offers the prospect of predictable,\u00a0low-CO\u2082 power at a number of locations around the UK and the\u00a0world.\u00a0 Previous assessments of tidal energy resources have taken\u00a0the form of desk studies based on simplified navigational data.\u00a0Where numerical [&hellip;]<\/p>\n","protected":false},"author":74337,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[441138,417955],"tags":[417899,552649,786073],"class_list":["post-808","post","type-post","status-publish","format-standard","hentry","category-phd-projects","category-tidal-energy","tag-environmental-impacts-2","tag-marine-energy","tag-tidal-energy"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/posts\/808","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/users\/74337"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/comments?post=808"}],"version-history":[{"count":1,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/posts\/808\/revisions"}],"predecessor-version":[{"id":3331,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/posts\/808\/revisions\/3331"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/media?parent=808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/categories?post=808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/serg\/wp-json\/wp\/v2\/tags?post=808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}