Anemometer
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Wind Tunnel Investigation of the Wind Patterns in the Launching Pad Area of the Brazilian Alcântara Launch Center
ABSTRACT This paper presents a wind tunnel study of the flow patterns in the main Brazilian Space Port, the Alcântara Launch Center (ALC), located in the Northwest region, over an irregular coastal cliff of 40 m height. In the ALC region, constant winds of strong incidence are very common, which can change the characteristics of the atmospheric boundary lay
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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2. Study of Gas Turbulent Dispersion Process in the Alcântara Launch Center
ABSTRACT: The Alcântara Launch Center (ALC) is the Brazilian gate to the space located at the north coast of Maranhão State, close to the Equator. Topographical local characteristics modify the parameters of incident atmospheric winds and it can cause great influence on the gas dispersion process. In this work, detailed scale models of the ALC region was e
J. Aerosp. Technol. Manag.. Publicado em: 25/10/2018
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3. EVATUATION SYSTEM OF EXHAUST FANS USED ON VENTILATION SYSTEM IN COMMERCIAL BROILER HOUSE
ABSTRACT: This study aim to develop a system, called FANS-N, for evaluation the exhaust fans in the ventilation system of broiler facilities. The system is divided into: 1) Mechanical Structure - consisting of two stepper motors for positioning a anemometer sensor in the vertical and horizontal coordinates; 2) Electronic Interface - control of the anemometer
Eng. Agríc.. Publicado em: 2017-09
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4. Experimental evaluation of the wind effects on an operating power transmission tower
Abstract Static and dynamic effects on power transmission towers can be evaluated by methodologies available in codes, which suggest the use of linear static analysis. By using numerical simulations, it is possible to observe the strong influence of the geometric nonlinear behavior of transmission cables. Dynamic effects also strongly influence this behavior
REM, Int. Eng. J.. Publicado em: 2016-09
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5. Characterization of Surface Level Wind in the Centro de Lançamento de Alcântara for Use in Rocket Structure Loading and Dispersion Studies
Abstract: We present wind data collected for ten days during the dry season in 2008 during the Murici II Campaign, which was carried out in the area of the Centro de Lançamento de Alcântara (CLA). The main goals are to better understand processes governing the wind regime in the CLA and the development of tools for analyzing the impact of wind on rocket st
J. Aerosp. Technol. Manag.. Publicado em: 2012-03
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6. Simulação de grandes escalas para análise numérica da esteira aerodinâmica da turbina eólica NREL UAE Phase VI
The Unsteady Aerodynamics Experiment Phase VI, which has been carried out in 2000 by the US National Renewable Energy Laboratory (NREL) at the NASA Ames wind tunnel, has been numerically reproduced. The purpose of this work is to study the characteristics of the wind wake produced by the 10 meter two bladed wind turbine, operating at a constant rotational sp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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7. Atmospheric flow measurements using the PIV and HWA techniques
Abstract: Alcântara Space Center (ASC) is the Brazilian gate to the space where rockets of different sizes are launched. At ASC there is a relative topographical variation, coastal cliff, which modifies the atmospheric boundary layer characteristics and can cause interference for operations of rockets. In the present work, a simplified model (mock-up) was s
J. Aerosp. Technol. Manag.. Publicado em: 2010-08
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8. Comparisons between aerovane and sonic anemometer wind measurements at Alcântara Launch Center
Abstract: This paper aimed to compare the wind measurements in two different types of anemometer: classical aerovane and modern sonic anemometer. The two sensors were installed at Alcântara Launch Center during a dry period of 2008 at 10 m height. The analysis compared the average and maximum wind speed for one- and ten-minute time intervals for each anemom
J. Aerosp. Technol. Manag.. Publicado em: 2010-04
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9. ANEMÔMETRO BASEADO EM SENSOR TERMO-RESISTIVO OPERANDO A TEMPERATURA CONSTANTE COM AJUSTE AUTOMÁTICO DE FAIXA DINÂMICA / ANEMOMETER SENSOR BASED ON OPERATING A TERMINATION-RESIST CONSTANT TEMPERATURE WITH AUTOMATIC ADJUSTMENT OF TRACK DYNAMICS
O anemômetro de fio quente, baseado em sensor termo-resistivo operando à temperatura constante, é uma arquitetura clássica que é vastamente encontrada na bibliografia. Todavia, esta arquitetura pode apresentar um problema devido à variação da faixa dinâmica de sua tensão de saída para variações significativas da temperatura do fluido. Neste trab
Publicado em: 2010
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10. Studies using wind tunnel to simulate the Atmospheric Boundary Layer at the Alcântara Space Center
Abstract: The Alcântara Space Center (ASC) region has a peculiar topography due to the existence of a Coastal cliff, which modifies the atmospheric boundary layer characteristic in a way that can affect rocket launching operations. Wind tunnel measurements can be an important tool for the understanding of turbulence and wind flow pattern characteristics in
J. Aerosp. Technol. Manag.. Publicado em: 2009-06
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11. Análise do perfil de vento na camada limite superficial e sistemas meteorológicos atuantes no Centro de Lançamento de Alcantâra / Analysis of the wind profile in the surface boundary layer and meteorological systems at the alcantara launching
O presente trabalho objetivou a realização de uma análise criteriosa dos perfis de velocidade e direção do vento e as características dos sistemas atmosféricos associados, com base nos dados de vento coletados pela Torre Anemométrica(TA) do Centro de Lançamento de Alcântara (CLA), inclusive verificando-se a qualidade dos dados coletados neste centr
Publicado em: 2009
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12. Análise do perfil de vento na camada limite superficial e sistemas meteorológicos atuantes no Centro de Lançamento de Alcantâra / Analysis of the wind profile in the surface boundary layer and meteorological systems at the alcantara launching
O presente trabalho objetivou a realização de uma análise criteriosa dos perfis de velocidade e direção do vento e as características dos sistemas atmosféricos associados, com base nos dados de vento coletados pela Torre Anemométrica(TA) do Centro de Lançamento de Alcântara (CLA), inclusive verificando-se a qualidade dos dados coletados neste centr
Publicado em: 2009