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A computational study of the force generation mechanisms in flapping-wing hovering flight

Content Provider	Semantic Scholar
Author	Bush, Brandon
Copyright Year	2013
Abstract	Title of Dissertation: A COMPUTATIONAL STUDY OF THE FORCE GENERATION MECHANISMS IN FLAPPINGWING HOVERING FLIGHT Brandon L. Bush, Doctor of Philosophy, 2013 Dissertation Directed by: Dr. James D. Baeder Department of Aerospace Engineering An incompressible Navier-Stokes computational fluid dynamics (CFD) solver is developed for simulating flapping wings at Reynolds numbers ( ) of approximately 10 – 10 3 in which the governing equations are solved in an immersed boundary framework on fixed Cartesian meshes. The dissertation work is divided into two portions: (1) Implementation of the immersed boundary method for incompressible low-Re flowfields. The applicability and robustness of various solution schemes are studied, with specific applicability to low biological flows (staggered variable formulations versus collocated implementations, upwind schemes as applied to incompressible flows, raytracing and geometric optimization of immersed boundary determination, Large Eddy Simulation (LES) model implementations). (2) The extension and application of the flow solver (IBINS) to model flapping-wing kinematics, and the analysis of the influence of kinematics and flow parameters on the force production for idealized flapping strokes. A representative Drosophila wing is simulated undergoing an idealized periodic flapping stroke. A detailed characterization of the vortical structures that develop in the near and far wake, along with their correlation with the force and power time histories, is given for simulations of various stroke kinematics at and . A COMPUTATIONAL STUDY OF THE FORCE GENERATION MECHANISMS IN FLAPPING-WING HOVERING FLIGHT
File Format	PDF HTM / HTML
DOI	10.13016/M24W4C
Alternate Webpage(s)	https://drum.lib.umd.edu/bitstream/handle/1903/16175/Bush_umd_0117E_15714.pdf?isAllowed=y&sequence=1
Alternate Webpage(s)	http://drum.lib.umd.edu/bitstream/handle/1903/16175/Bush_umd_0117E_15714.pdf?isAllowed=y&sequence=1
Alternate Webpage(s)	https://doi.org/10.13016/M24W4C
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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