Search for dissertations about: "free flight"

Showing result 1 - 5 of 49 swedish dissertations containing the words free flight.

  1. 1. Birds in the Flow: Flight Mechanics, Wake Dynamics and Flight Performance

    Author : Mikael Rosén; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; Animal ecology; Eleonora s falcon.; hunting; optimum wingspan; tail posture; wingbeat kinematics; wake topology; DPIV; flight performance; wake dynamics; flight mechanics; wind tunnel; Flight; bird;

    Abstract : I share my fascination of bird flight with many others, and here I summarise my thesis on the subject. This thesis emphasises the mechanics of bird flight by focusing on flight mechanics, wake dynamics and flight performance. READ MORE

  2. 2. Escape flight in butterflies

    Author : Maria Almbro; Cecilia Kullberg; Ronald Rutowski; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Flight; Lepidoptera; gamete load; lipid accumulation; predation risk; hibernation; Biology; Biologi; zoologi; Zoology;

    Abstract : Flight is considered to be the overarching reason for the enormous diversity and world-wide abundance of insects. Not only does flight enable great distances to be covered and new areas to be colonised, flying has also evolved to be important in most adult life-history characteristics from reproduction to anti-predator strategies. READ MORE

  3. 3. Always on the wing - Fluid dynamics, flight performance and flight behavior of common swifts

    Author : Per Henningsson; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Apus apus; aerodynamics; animal flight; kinematics; vortex wake; digital particle image velocimetry; DPIV; common swift; tracking radar; wind tunnel; migration; roosting flight;

    Abstract : The aerodynamics and kinematics behind the flight of animals are relatively unknown. Although animal flight has been studied for several hundreds of years, it is only in recent time that we have the technical abilities to study the mechanistic basis of animal flight. READ MORE

  4. 4. On subscale flight testing : Cost-effective techniques for research and development

    Author : Alejandro Sobrón Rueda; Petter Krus; David Lundström; Mirko Hornung; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Experiments with downscaled or subscale physical models have traditionally been an essential source of information in aerospace research and development. Physical models are very effective at revealing unforeseen issues and providing confidence in design predictions or hypotheses. READ MORE

  5. 5. On Subscale Flight Testing : Applications in Aircraft Conceptual Design

    Author : Alejandro Sobron; Petter Krus; David Lundström; Zdobyslaw Goraj; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. READ MORE