{"id":558499,"date":"2024-11-05T18:21:11","date_gmt":"2024-11-05T18:21:11","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/esdu-830202012\/"},"modified":"2024-11-05T18:21:11","modified_gmt":"2024-11-05T18:21:11","slug":"esdu-830202012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/esdu\/esdu-830202012\/","title":{"rendered":"ESDU 83020:2012"},"content":{"rendered":"<p>\n\tESDU 83020 provides pressure distribution data for both surfaces<br \/>\nof simple, isolated, paraboloidal antennas in uniform flow. For<br \/>\nincidences of 0 and 180 degrees the data are presented as radial<br \/>\npressure distributions for focal length\/diameter (f\/d) ratios from<br \/>\n0.2 to infinity (a flat disc). For incidences of 60, 90 and 120<br \/>\ndegrees, plots of constant pressure contours are provided for f\/d<br \/>\nratios of 0.33 and 0.4. A suitable approach is suggested for<br \/>\ninterpolation for other incidences and limited interpolation or<br \/>\nextrapolation for other f\/d ratios, and a blank grid is included on<br \/>\nwhich contour plots can be developed. The pressure distribution<br \/>\ndata have been integrated (the procedure is given) to give force<br \/>\nand moment coefficient values and compatibility with coefficient<br \/>\ndata from ESDU 82031 is ensured. Corrections made to the basic<br \/>\nexperimental data are discussed.\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Paraboloidal Antennas: Wind Loading &#8211; Part 2: Surface Pressure Distribution<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/esdu\/\"><b>ESDU<\/b><\/a><\/td>\n<td>2012-03<\/td>\n<td>25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":558507,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2675],"product_tag":[],"class_list":{"0":"post-558499","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-esdu","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/558499","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/558507"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=558499"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=558499"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=558499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}