Albatroso (Diomedea exulans) skrydžio modeliavimas ir optimalių skriejimo trajektorijų optimizavimas

• Main Author: Klimas, Mindaugas
• Other Authors: Lankauskas, Alfredas
• Format: Master Thesis
• Language: Lithuanian; English
• Published: Institutional Repository of Siauliai University 1480
• Subjects: Wandering; albatross; diomedea; exulans; aerodynamics; Diomedea exulans; Wandering Albatross
• Online Access: http://su.oai.elaba.lt/documents/28887241.pdf; http://su.lvb.lt/SU:ELABAETD28887241&prefLang=en_US

The purpose of this thesis is to develop and implement a computational process to enable the swift design of different wandering albatross 3D structure wing profile configurations and their aerodynamic analysis. Wandering albatrosses are known for their capability to soar excessive distances without flapping their wings. Several theories have been proposed in order to explain how albatross extract energy from wind. The first one is that albatross gains prominence using wind-shear, that increase in wind speed with height above ocean surface to gain energy. This type of soaring technique is known as wind-shear soaring. The second theory of wave-slope soaring claims that albatross uses updrafts caused by wind blowing over waves to gain energy. To develop albatross 3D structure various types of CAD tools were adopted. To recreate and define external shape of albatross we implemented software AutoCAD. Recreated 3D structure later was imported into widely spread computational software SolidWorks where aerodynamic analysis using Flow Simulation was performed. Test case consisted of aerodynamic wing profile studies where wing profile angle of attack changes in the range of α∈[0°; 25°]; albatross 3D structure analysis when flaps change in the range of AoA=0°÷6°, with albatrosstrue air speed of Vx = 15 m/s andflaps AoA=-2°÷0°, when true air speed reached Vx = 25 m/s. To enchant performance of albatross model and its aerodynamic characteristics series of parametric optimizations were performed.