{"id":18799,"date":"2025-02-07T10:28:21","date_gmt":"2025-02-07T10:28:21","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18799"},"modified":"2025-02-07T10:28:22","modified_gmt":"2025-02-07T10:28:22","slug":"modeling-of-an-atmospheric-boundary-layer-profile-in-support-of-experiments-in-the-nasa-langley-transonic-dynamics-tunnel","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/07\/modeling-of-an-atmospheric-boundary-layer-profile-in-support-of-experiments-in-the-nasa-langley-transonic-dynamics-tunnel\/","title":{"rendered":"MODELING OF AN ATMOSPHERIC-BOUNDARY-LAYER PROFILE IN SUPPORT OF EXPERIMENTS IN THE NASA LANGLEY TRANSONIC DYNAMICS TUNNEL"},"content":{"rendered":"\n<p><strong>Pawel Chwalowski, Thomas G. Ivanco<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-027<\/strong><\/p>\n\n\n\n<p>This paper presents the results of the Computational Fluid Dynamics (CFD) analyses to model two atmospheric-boundary-layer (ABL) pro\ufb01les inside the NASA Langley Research Center Transonic Dynamics Tunnel (TDT). The CFD models include tunnel walls and all additional hardware needed to simulate the ABL pro\ufb01les. This hardware includes Irwin spires and \ufb02oor-mounted roughness elements. The numerical simulations show that the application of higher-\ufb01delity numerical methods is necessary to compute boundary-layer and turbulenceintensity pro\ufb01les that match experimental data. The ABL pro\ufb01les are computed both inside the numerical model of the TDT and in a classical free-air model. Both Unsteady ReynoldsAveraged Navier-Stokes (URANS) with Spalart-Allmaras (SA) turbulence model and Modi\ufb01ed Delayed Detached Eddy (MDDES) simulation methods are used. The results show that the MDDES-simulation results match the experimental data very well while URANS-SA does not. The results also show that the wind-tunnel walls have a signi\ufb01cant effect on ABL prediction.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-027.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Pawel Chwalowski, Thomas G. Ivanco<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-027<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2433,2454],"tags":[2833,442,2041,2831,2832,2001],"class_list":["post-18799","post","type-post","status-publish","format-standard","hentry","category-1-ifasd-2019","category-unsteady-cfd","tag-abl","tag-cfd","tag-fun3d","tag-mddes","tag-tdt","tag-unsteady-aerodynamics","category-2433","category-2454","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=18799"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18799\/revisions"}],"predecessor-version":[{"id":18801,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18799\/revisions\/18801"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}