Aerodynamics Drag
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. Multidisciplinary Design Optimization of Sounding Rocket Fins Shape Using a Tool Called MDO-SONDA
Abstract: Multidisciplinary design optimization is a promising field in aerospace engineering. However, advances in this field have not been applied yet to improve Brazilian sounding rockets, such as the VS-40. Therefore, to give a perspective of the multidisciplinary design optimization in this context, this work presented a case study of this rocket, which
J. Aerosp. Technol. Manag.. Publicado em: 2012-12
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3. Otimização e dinâmica dos fluidos computacional aplicadas a turbinas eólicas
The present work consists in the application of optimization methods and computational fluid dynamics to wind turbines. The massive growth in renewable energies demands more powerful turbines and more accuracy in their design and analysis. This work has three objectives: optimization of an airfoil for wind turbines, simulation of a wind turbine airfoil in de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. Métodos de redução do arrasto e seus impactos sobre a estabilidade veicular / Methods of drag reduction and the impacts on the vehicle aerodynamics stability
The growing environmental concern and the necessity to create more efficient products have motivated researchers to conduct studies about the aerodynamic vehicle. These two aspects are the main reasons which are promoting a great demand for knowledge in this theme. This science may be considered relatively new and still lacks more databases. Understand how a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/06/2011
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5. Análise aerodinâmica de perfis de asa para aeronaves experimentais tipo jn-1
A importância na escolha do perfil de asa de uma aeronave é função de sua relevância no seu desempenho; influenciando desde os custos de deslocamento (consumo de combustível, nível de vôo, por exemplo), a condições de segurança do vôo (resposta em condições críticas) do avião. O objetivo deste trabalho foi analisar quatro perfis de asa a fim
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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6. Simulation of viscous flow around a circular cylinder near a moving ground
The objective of this paper is to study the vortex shedding from a circular cylinder near a moving ground; this is done using the Vortex Method. A moving ground has been widely used in the field of experimental vehicle aerodynamics, especially of high-performance racing cars, to properly consider the ground effect on the vehicles aerodynamic. In experimental
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-09
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7. Novo sensor de vazão de fluidos com foco em aplicações biomedicas / New fluid flow sensor aimed at biomedical applications
Spirometer is a device that evaluates pulmonary ventilation. This paper presents a preliminary study of a new electromechanical sensor, focused on the biomedical application of spirometry. The sensor is composed of a bluff body positioned inside a tube trough a hole, being a part of the body inside and another part outside of the tube, and an accelerometer p
Publicado em: 2009
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8. Modelo matemático para análise dos efeitos da turbulência em escoamentos bifásicos fluido - partícula / Mathematical model for turbulence effect analysis in two-phase flow type fluid-particle
In this work the effect of particles or drops, which constitute the dispersed phase, is analyzed in the turbulence of the continuous phase (gas or liquid). This type of analysis, which is known as turbulence modulation, searchs to get the variations in the terms sources of generation of kinetic energy provoked by the interaction of particles with the continu
Publicado em: 2006
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9. Estudo de transferências orbitais incluindo manobras aeroassistidas / Study of orbital transfers with aeroassisted maneuvers
Este trabalho apresenta uma análise de missões espaciais através do desenvolvimento de um programa computacional para o cálculo de manobras aerodinâmicas e das manobras propulsivas necessárias para sua implementação. Além do desenvolvimento numérico, um estudo analítico contempla a realização da fase aeroassistida deste tipo de manobra. Nessa an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 200102
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10. Estudo de transferências orbitais incluindo manobras aeroassistidas / Study of orbital transfers with aeroassisted maneuvers
This work presents an analysis of space missions through the development of a software package for the calculation of aerodynamic maneuvers and of the required thrust maneuvers for their implementation. Besides the numerical development, an analytical study contemplates the accomplishment of the acroassisted phase of this maneuver type. This analysis include
Publicado em: 2001