{"id":18814,"date":"2025-02-07T13:15:41","date_gmt":"2025-02-07T13:15:41","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=18814"},"modified":"2025-02-07T13:15:41","modified_gmt":"2025-02-07T13:15:41","slug":"improvement-of-unsteady-aerodynamic-loads-prediction-of-the-doublet-lattice-method-using-small-disturbance-cfd","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/02\/07\/improvement-of-unsteady-aerodynamic-loads-prediction-of-the-doublet-lattice-method-using-small-disturbance-cfd\/","title":{"rendered":"IMPROVEMENT OF UNSTEADY AERODYNAMIC LOADS PREDICTION OF THE DOUBLET-LATTICE METHOD USING SMALL DISTURBANCE CFD"},"content":{"rendered":"\n<p><strong>Cyrille Vidy, Lukas Katzenmeier<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: IFASD-2019-034<\/strong><\/p>\n\n\n\n<p>This paper shows a correction method for classical potential aerodynamic method such as the subsonic Doublet-Lattice Method (DLM) or the supersonic method ZONA51, both widely used for aeroelastic computations. This particular correction method is based on small disturbance CFD, a very robust and efficient tool to derive linearized aerodynamic forces for aeroelasticity with CFD quality. It is based on a multiplicative correction of the aerodynamic influence coefficients (AIC) and on additive correction terms. A first assessment of the improvements to the DLM generalized aerodynamic forces (GAFs) is done using the NLR7301 airfoil, then the effects of this correction technique for flutter analysis are presented using the flying wing configuration SACCON (DLR-F19) and compared with DLM and small disturbance CFD results.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/02\/IFASD-2019-034.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Cyrille Vidy, Lukas Katzenmeier<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: IFASD-2019-034<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2433,2453],"tags":[1972,2844,2295,2021],"class_list":["post-18814","post","type-post","status-publish","format-standard","hentry","category-1-ifasd-2019","category-unsteady-aerodynamics-1-ifasd-2019","tag-aeroelasticity","tag-dlm-correction-2","tag-small-disturbance-cfd","tag-structural-dynamics","category-2433","category-2453","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18814","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=18814"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18814\/revisions"}],"predecessor-version":[{"id":18816,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/18814\/revisions\/18816"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=18814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=18814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=18814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}