{"id":439877,"date":"2017-08-15T02:00:00","date_gmt":"2017-08-14T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=37888019c5e201cb02cf59f1c6a83804"},"modified":"2017-08-15T02:00:00","modified_gmt":"2017-08-14T23:00:00","slug":"rotating-electrical-machines-poynting-flow","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=439877","title":{"rendered":"Rotating electrical machines: Poynting flow"},"content":{"rendered":"<p>This paper presents a complementary approach to the traditional Lorentz and Faraday approaches that<br \/>\nare typically adopted in the classroom when teaching the fundamentals of electrical machines\u2014motors<br \/>\nand generators. The approach adopted is based upon the Poynting vector, which illustrates the \u2018flow\u2019<br \/>\nof electromagnetic energy. It is shown through simple vector analysis that the energy-flux density<br \/>\nflow approach can provide insight into the operation of electrical machines and it is also shown<br \/>\nthat the results are in agreement with conventional Maxwell stress-based theory. The advantage of<br \/>\nthis approach is its complementary completion of the physical picture regarding the<br \/>\nelectromechanical energy conversion process\u2014it is also a means of maintaining student interest in<br \/>\nthis subject and as an unconventional application of the Poynting vector during normal study of<br \/>\nelectromagnetism.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This paper presents a complementary approach to the traditional Lorentz and Faraday approaches that<br \/>\nare typically adopted in the classroom when teaching the fundamentals of electrical machines\u2014motors<br \/>\nand generators. The approach adopted is based up&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-439877","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/439877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=439877"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/439877\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=439877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=439877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=439877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}