{"id":611886,"date":"2019-04-25T07:24:21","date_gmt":"2019-04-25T11:24:21","guid":{"rendered":"https:\/\/ntrs.nasa.gov\/search.jsp?R=20190002741"},"modified":"2019-04-25T07:24:21","modified_gmt":"2019-04-25T11:24:21","slug":"laser-rayleigh-scattering-for-flow-density-and-condensation-measurements-in-the-supercooled-mach-14-free-stream-at-aedc-wind-tunnel-no-9","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=611886","title":{"rendered":"Laser Rayleigh Scattering for Flow Density and Condensation Measurements in the Supercooled Mach-14 Free-Stream at AEDC Wind Tunnel No. 9"},"content":{"rendered":"<p>Abstract: Laser Rayleigh scattering was used to investigate clusters in the free-stream flow at Arnold Engineering Development Center\u2019s Tunnel 9 (T9). The facility was run at Mach-14, with a pure-N2 flow medium, and at several total pressures and temperatures. Using an excimer laser operating at 248 nm, the Rayleigh instrument imaged scattering from the focused laser beam in the free-stream. As a wind-tunnel flow is accelerated, it cools and approaches the condensation boundary. As a precursor to conde&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: Laser Rayleigh scattering was used to investigate clusters in the free-stream flow at Arnold Engineering Development Center\u2019s Tunnel 9 (T9). The facility was run at Mach-14, with a pure-N2 flow medium, and at several total pressures and tempe&#8230;<\/p>\n","protected":false},"author":60,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-611886","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/611886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/60"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=611886"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/611886\/revisions"}],"predecessor-version":[{"id":611887,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/611886\/revisions\/611887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=611886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=611886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=611886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}