Leading-edge vortex stability in insect wings

An analytical study is presented to determine if the persistency of the leading-edge vortex in an insect wing can be explained as the balance between vorticity generation at the leading edge and advection plus effects of vorticity stretching and tilting by the flow along the wing span. It is found t...

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Autores principales: Minotti, F.O., Speranza, E.
Formato: JOUR
Materias:
Advection plus effects
Insect wings
Leading-edge vortex stability
Rotation velocity
Rotation
Velocity control
Vortex flow
Biological organs
animal
biological model
computer simulation
flying
forelimb
insect
mechanical stress
microfluidics
physiology
procedures
Animals
Computer Simulation
Flight, Animal
Insects
Microfluidics
Models, Biological
Stress, Mechanical
Wing
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15393755_v71_n5_p_Minotti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15393755_v71_n5_p_Minotti
record_format dspace
spelling todo:paper_15393755_v71_n5_p_Minotti2023-10-03T16:22:07Z Leading-edge vortex stability in insect wings Minotti, F.O. Speranza, E. Advection plus effects Insect wings Leading-edge vortex stability Rotation velocity Rotation Velocity control Vortex flow Biological organs animal biological model computer simulation flying forelimb insect mechanical stress microfluidics physiology procedures Animals Computer Simulation Flight, Animal Insects Microfluidics Models, Biological Stress, Mechanical Wing An analytical study is presented to determine if the persistency of the leading-edge vortex in an insect wing can be explained as the balance between vorticity generation at the leading edge and advection plus effects of vorticity stretching and tilting by the flow along the wing span. It is found that a spanwise flow of the required magnitude is produced by the simple rotation of the wing about its root at a constant angle of attack (no supination or pronation), and that the regions where this equilibrium exists in stable form are well localized, independent of the rotation velocity, almost independent of the position along the wing, and weakly dependent on the angle of attack, for angles below 70°. In contrast, extended regions of vorticity are expected for angles of attack above 75°. © 2005 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15393755_v71_n5_p_Minotti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Advection plus effects
Insect wings
Leading-edge vortex stability
Rotation velocity
Rotation
Velocity control
Vortex flow
Biological organs
animal
biological model
computer simulation
flying
forelimb
insect
mechanical stress
microfluidics
physiology
procedures
Animals
Computer Simulation
Flight, Animal
Insects
Microfluidics
Models, Biological
Stress, Mechanical
Wing
spellingShingle Advection plus effects
Insect wings
Leading-edge vortex stability
Rotation velocity
Rotation
Velocity control
Vortex flow
Biological organs
animal
biological model
computer simulation
flying
forelimb
insect
mechanical stress
microfluidics
physiology
procedures
Animals
Computer Simulation
Flight, Animal
Insects
Microfluidics
Models, Biological
Stress, Mechanical
Wing
Minotti, F.O.
Speranza, E.
Leading-edge vortex stability in insect wings
topic_facet Advection plus effects
Insect wings
Leading-edge vortex stability
Rotation velocity
Rotation
Velocity control
Vortex flow
Biological organs
animal
biological model
computer simulation
flying
forelimb
insect
mechanical stress
microfluidics
physiology
procedures
Animals
Computer Simulation
Flight, Animal
Insects
Microfluidics
Models, Biological
Stress, Mechanical
Wing
description An analytical study is presented to determine if the persistency of the leading-edge vortex in an insect wing can be explained as the balance between vorticity generation at the leading edge and advection plus effects of vorticity stretching and tilting by the flow along the wing span. It is found that a spanwise flow of the required magnitude is produced by the simple rotation of the wing about its root at a constant angle of attack (no supination or pronation), and that the regions where this equilibrium exists in stable form are well localized, independent of the rotation velocity, almost independent of the position along the wing, and weakly dependent on the angle of attack, for angles below 70°. In contrast, extended regions of vorticity are expected for angles of attack above 75°. © 2005 The American Physical Society.
format JOUR
author Minotti, F.O.
Speranza, E.
author_facet Minotti, F.O.
Speranza, E.
author_sort Minotti, F.O.
title Leading-edge vortex stability in insect wings
title_short Leading-edge vortex stability in insect wings
title_full Leading-edge vortex stability in insect wings
title_fullStr Leading-edge vortex stability in insect wings
title_full_unstemmed Leading-edge vortex stability in insect wings
title_sort leading-edge vortex stability in insect wings
url http://hdl.handle.net/20.500.12110/paper_15393755_v71_n5_p_Minotti
work_keys_str_mv AT minottifo leadingedgevortexstabilityininsectwings
AT speranzae leadingedgevortexstabilityininsectwings
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