01.2 - Aircraft Design and Integrated Systems (Use cases and Applications)
A LAMINAR TAILORED WING WITH CATNLF AND HLFC FOR EXTRA LONG RANGE
J. Ruberte Bailo¹, T. Streit¹, A. Seitz¹; ¹DLR, Germany
A Natural Laminar Flow (NLF), backward swept wing with a lift coefficient of 0.52, a wingspan of 63.84 metersrnand an aspect ratio of 11.74 for a Reynolds number of 44.6 Million and a Mach number of 0.83 has been de-rnveloped during the Laminar Tailored Aircraft (LamTA) project. Starting with the preliminary design, a referencernlift distribution, a thickness distribution, and a detailed turbulent design was developed, looking for the best Lift-rnDrag-Weight trade-off. An outstanding glide ratio of 25.64 was achieved which has been further improved tornTBD by implementing laminar flow. In order to achieve laminar flow on the configuration, Crossflow AttenuatedrnNatural Laminar Flow (CATNLF) profiles were designed in wingspan region from 85% inwards. The config-rnuration has been designed using the DLR in-house inverse design code and the stability analysis coco/lilo.