Wing Geometry
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Investigation of a NACA0012 Finite Wing Aerodynamics at Low Reynold’s Numbers and 0º to 90º Angle of Attack
ABSTRACT: The aerodynamic characteristics of a NACA0012 wing geometry at low Reynold’s numbers and angle of attack ranging from 0º to 90º are investigated using numerical simulations and the results are validated by wind tunnel experiments. Further experiments are conducted at low Reynold’s numbers of 1 × 105, 2 × 105 and 3 × 105. Findings of the st
J. Aerosp. Technol. Manag.. Publicado em: 28/03/2019
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2. Aerofoil Design for Unmanned High-Altitude Aft-Swept Flying Wings
ABSTRACT In this paper, 12 new aerofoils with varying thicknesses for an aft-swept flying wing unmanned air vehicle have been designed using a MATLAB tool which has been developed in-house. The tool consists of 2 parts in addition to the aerodynamic solver XFOIL. The first part generates the aerofoil section geometry using a combination of PARSEC and Bezier-
J. Aerosp. Technol. Manag.. Publicado em: 2017-09
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3. Latitudinal gradient effect on the wing geometry of Auca coctei (Guérin)(Lepidoptera, Nymphalidae)
Latitudinal gradient effect on the wing geometry of Auca coctei (Guérin) (Lepidoptera, Nymphalidae). When the environmental conditions change locally, the organisms and populations may also change in response to the selection pressure, so that the development of individuals may become affected in different degrees. There have been only a few studies in whic
Rev. Bras. entomol.. Publicado em: 20/12/2013
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4. Characterization of Anopheles darlingi (Diptera: Culicidae) populations from Brazil by external morphological structure of eggs, wings and gene sequences / Caracterização de populações de Anopheles darlingi (Diptera:Culicidae) do Brasil por estruturas de morfologia externa dos ovos, das asas e por sequências gênicas
Introdução - A malária é uma das principais doenças humanas do mundo e afeta principalmente as populações pobres em regiões tropicais e subtropicais onde as condições ambientais são favoráveis tanto para a proliferação dos agentes etiológicos como dos mosquitos vetores. No Brasil, An. darlingi é considerado vetor primário de plasmódios huma
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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5. Temporal variation of wing geometry in Aedes albopictus
Although native to the tropical and subtropical areas of Southeast Asia, Aedes albopictus is now found on five continents, primarily due to its great capacity to adapt to different environments. This species is considered a secondary vector of dengue virus in several countries. Wing geometric morphometrics is widely used to furnish morphological markers for
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-12
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6. Creep-age forming of AA7475 aluminum panels for aircraft lower wing skin application
Creep-age forming (CAF) is an interesting process for the airframe industry, as it is able to form or shape panels into smooth, but complex, curvatures. In the CAF process, the ageing cycle of the alloy is used to relax external loads imposed to the part, through creep mechanisms. Those relaxed stresses impose a new curvature to the part. At the end of the p
Materials Research. Publicado em: 17/07/2012
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7. Aerodynamic coefficient prediction using neural networks.
The present work discusses the application of neural networks for the accurate prediction of aerodynamic coefficients of airfoil and wing-body configurations. Meta-models based on neural-network are able to handle non-linear problems with a large amount of variables. In this highlight, an efficient methodology employing neural networks for predicting aerodyn
Publicado em: 2008
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8. Buckling optimization of arbitrary shape plates under uncertain loads.
Typically, aircraft wing structural panels are designed against buckling for a very large number of possible loading that may occur during the operation of the aircraft. If the optimization procedure accounts only for a limited number of design loads, the structure may be vulnerable to a specific type of loading that may cause the structure to fail. A novel
Publicado em: 2005
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9. Wing geometry as a tool for studying the Lutzomyia longipalpis (Diptera: Psychodidae) complex
Toro Toro (T) and Yungas (Y) have been described as genetically well differentiated populations of the Lutzomyia longipalpis (Lutz & Neiva, 1912) complex in Bolivia. Here we use geometric morphometrics to compare samples from these populations and new populations (Bolivia and Nicaragua), representing distant geographical origins, qualitative morphological va
Memórias do Instituto Oswaldo Cruz. Publicado em: 2001-11
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10. Determination of DNA structures by NMR and distance geometry techniques: a computer simulation.
Computer simulations have been performed to determine how accurately and precisely structures of DNA oligomers can be generated from distance data obtained from two-dimensional NMR experiments. A hexamer fragment d(CGAATT) of the Dickerson dodecamer [Drew, H.R., Wing, R.M., Takano, T., Broka, C., Tanaha, S., Itakura, K. & Dickerson, R.E. (1981) Proc. Natl. A