Chromium is used in many processing applications, which has led to the formation of chromium(VI) waste. Cr(VI) is an unstable, mobile carcinogen, which is interchangeable with Cr(III) under certain environmental conditions. Management of this waste, however, is often not considered. Mine under investigation is an example of such historic mismanagement. During the second World War, Cr(VI) waste was transferred to the study site from areas where leather products were made for the war effort. This waste was not managed appropriately in the past and with time Cr(VI) leached into the groundwater and possibly surface water resources. As these water resources are used for domestic and agricultural water supply, this may have serious effects on the human and environmental health in the area. Some of the major Cr(VI) effects on human and animal health include malignant tumours, skin irritation, respiratory and reproductive system damage. Lung cancer is of concern when Cr(VI) is inhaled and stomach tumours occur when this chemical pollutant is ingested. The effects of Cr(VI) on plants include the disruption of shoot and root elongation, and if it accumulates enough within the plant can cause ingested health problems for humans and animals. Water quality guidelines state that the Target Water Quality Range for Cr(VI) in drinking water should not exceed 0.05 mg/L. Prolonged exposure of values higher than this target value has adverse health effects and may result in cancer. The study site has a scarcity in water sources and therefore requires good quality water resources. This study aims to identify and use biomarkers to assist in the hydrological characterization of the mine. Available mitigation options can be implemented once it is known how the water in the area moves and distributes Cr(VI) pollution. A biomarker is an indicator of a biological state, which in turn can be used to assist in characterizing the chemical conditions of the sub-surface. Bacteria can aid as environmental biomarkers as they are sensitive and specific to the environmental conditions in which they flourish. In this way they give a good indication of the environmental condition and any possible pollution. Due to the fact that ground- and surface water are integrated resources, it is likely that if one is impacted by pollution, it will indirectly impact the other one. Therefore, the biomarkers identified can be used to characterize water pollutants that are present in ground- and some surface water resources. A description of the study site is provided, wherein the climate, elevation, geology, land use, geohydrology, hydrochemistry and surface water are documented. These factors help to identify and clarify the sources and pathways that water and the pollution would follow. Ten water samples, from surface and groundwater, were obtained in two separate sampling opportunities. The first analysis of the water samples included the determination of the chemical constituents. Two of these constituents analyzed were the total Cr and individual Cr(VI) levels. Six water samples had excessively high Cr values (exceeding the Water Quality Target Range of drinking water and water agricultural use). These values ranged from 0.1 – 3.9 mg/L. The 6 samples with excessive Cr(VI) values were used for the microbial analyses. The microbial analyses consisted of DAPI (4’,6-diamidino-2-phenylindole ) staining, for cell enumeration, and molecular analyses. The molecular analyses included polymerase chain reaction (PCR), denaturing gradient gel electrophoresis (DGGE) and sequencing applications concluded in the laboratory. Fifteen bands, representing different organisms, were removed from the DGGE polyacrylamide gel and processed for sequencing. The organisms that were present in the sample were uncultured Cyanobacterium, Sediminibacterium salmoneum, uncultured Bacteroidetes bacterium, uncultured betaproteobacterium, uncultured actinobacterium, uncultured Rhodocyclaceae, uncultured Chloroflexi bacterium and uncultured delta-proteobacterium. According to literature most of these organisms may adapt the ability to either reduce Cr(VI) or resist any effect of Cr(VI) in the environment. Two of the bands were highly unidentified organisms, which means that these organisms have not yet been cultured or identified in any sense. The reason for this is that most microorganisms have not yet been documented. This also makes it difficult to identify the exact bacterial strain present within the samples. The deoxyribonucleic acid (DNA) sequences of the different organisms were very different from each other, when compared by a dendrogram. This means that there was a diverse community present within the samples. Electrical conductivity profiles were conducted in the monitoring boreholes to identify possible fracture positions. The total chromium and chromium(VI) levels were documented and compared. Other chemical factors were analysed and those of high value, such as chloride, nitrate and chromium measurements, were used for statistical analyses and comparison with the biomarkers present in the sample. A positive correlation was found between the sample sites and the organisms present within each. It was noted that different communities have different metabolic activities related to susceptibility and will therefore differ under specific environmental conditions. The microorganisms that were present in the 6 water samples all have the ability to either resist or reduce Cr(VI). This means that in Cr(VI) polluted areas they are more likely to flourish than organisms that do not possess this ability. Such susceptible, non-resistant organisms would otherwise occur naturally in a non-polluted environment. From the obtained results it was noted that microorganisms could aid as biomarkers when determining the environmental condition (with respect to Cr(VI) pollution). The bacteria analysed in the samples all indicate a level of chromium pollution, and aided in the determination of pollution sources. These biomarkers can therefore be used to determine the location of other chromium deposits not yet located. / MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2013

This study aim’s to examine how conceptions regarding culture and ethnicity influence the daily work of personnel in integration projects financed by the European Social Fund (ESF). The method of this study was individual semi-structured interviews with nine persons working in three different projects. The reason why we have chosen these specific projects was because of their work with immigrant participants. Concepts that our study is based on was culture and ethnicity, but also the theory considering in-groups and out-groups. The result of our study shows that the personnel acknowledge the importance of individual adaptation in the work with the participants, but with awareness considering cultural expressions based on their origin. The answers of the personnel also reveal a cultural hierarchy in the Swedish society. We found out that discrimination from employers is mainly based on the immigrant’s lack of Swedish linguistics. The personnel consider the knowledge of language to be one of the most important factors for immigrants when integrating into a new society. Some of the personnel mentioned that cultural prejudices affect their refutation in the meeting with immigrant participants.

In this essay, Enid Blyton’s book Five Fall into Adventure is analyzed with a focus on behavior patterns, stereotypes and power division. Intersectionality is used as an approach and a close reading of passages is used as a method. I argue that the novel could work as a good starting point for raising important questions in the classroom, despite the criticism which has been directed towards Blyton’s works. Although the way in which Blyton portrays gender stereotypes is often more acknowledged by critics, this book could be an especially useful tool when touching upon the questions of class and ethnicity. The essay also demonstrates that the criticized aspects of the books, such as them being considered sexist, should be further analyzed, emphasized and discussed, rather than suppressed, because they could serve as a good starting point for dealing with questions which are important to touch upon in teaching situations. Inequality, sexism and xenophobia are examples of such questions. / I denna uppsats analyseras Enid Blytons bok Fem går i fällan med fokus på beteendemönster, stereotyper och maktskillnader. Analysen utförs utifrån ett intersektionellt perspektiv och närläsning av avsnitt används som metod. Jag framhåller att boken skulle kunna fungera som en bra utgångspunkt för att beröra viktiga frågor i klassrummet, trots att kritik har riktats mot Blytons verk. Det är ofta Blytons sätt att skildra genusstereotyper som uppmärksammas mest av kritiker, men jag belyser att boken skulle kunna vara ett särskilt användbart verktyg för att beröra frågor rörande klass och etnicitet. Uppsatsen visar även att de kritiserade aspekterna av böckerna, exempelvis att de kan anses vara sexistiska, borde vidare analyseras, betonas och diskuteras, istället för att undvikas. Anledningen till det är att de kan användas som en väldigt bra utgångspunkt för att ta upp frågor som är viktiga att vidröra i undervisningen. Ojämlikhet, sexism och främlingsfientlighet är exempel på sådana frågor.

Projektet "Att komma till ön med skatten är inget äventyr" resulterade i diktsamlingen Valen simmade förbi sagorna vi lämnade i havet. De deltagande barnen i projektet har genom estetiska uttrycksformer och textskapande skapat dikter utifrån minnen, tankar och erfarenheter av krig och flykt. Med hjälp av fantasifulla associationer och färgstarka illustrationer bjuder diktsamlingen in till känslofylld läsning för både barn och vuxna. Utifrån projektets och diktsamlingens arbete med textskapande och estetiska uttrycksformer undersöks i denna studie hur liknande arbetssätt kan vara användbara i skolans verksamhet. Studien syftar till att i diktsamlingen och projektet urskilja återspeglingar av det nutida samhället, samt undersöka på vilket sätt dessa i sin tur kan påverka rådande samhällsstrukturer. De analysmetoder som används i studien är ikonografi, hermeneutisk lyrikanalys, ikonotext, litteratursociologi och symbolikanalys, dessutom vilar studien på en teoretisk ansats, ett sociokulturellt perspektiv. Studiens resultat visar att analysen av diktsamlingen ger en bild av hur barnens tankar och känslor kan uttryckas i form av dikter genom estetiska uttrycksformer och textskapande. Analysen visar även att illustrationerna bidrar till läsupplevelsen och ger texterna ett tydligare djup. Resultate visar också att projektets arbetsmetoder till hög grad överensstämmer med läroplanens riktlinjer och värdegrund, samt att det samhällsperspektiv som diktsamlingen och projektet bidrar med gör att diktsamlingen kan vara användbar vid undervisning i värdegrundsarbete.

O experimento Unsteady Aerodynamics Experiment Phase VI, realizado no ano de 2000 pelo Laboratório Nacional norte-americano para as Energias Renováveis (NREL) no túnel de vento Ames da NASA, foi reproduzido numericamente neste trabalho. O objetivo é o estudo das características da esteira aerodinâmica produzida pela turbina eólica de duas pás e 10 metros de diâmetro, operando à velocidade de rotação constante de 72 RPM, sujeita a uma velocidade de corrente livre do vento uniforme de 9 m/s, em um túnel de vento cuja seção de testes mede 36,6 m de largura por 24,4 m de altura e o comprimento mede 170 m. Para isso, foi utilizado o programa comercial ANSYS FLUENT versão 13.0, baseado no Método dos Volumes Finitos para a solução numérica das Equações de Navier-Stokes em regime transiente em conjunto com a Simulação de Grandes Escalas (SGE) para resolver a turbulência. As geometrias de todos os componentes da máquina foram criadas em software CAD. Um domínio móvel em forma de disco, contendo as pás do rotor e o hub da máquina, foi criado separadamente, e posteriormente inserido no domínio principal, estático, usando a ferramenta Moving Mesh disponível no software FLUENT. Ambos os domínios foram preenchidos por malhas compostas por tetraedros. Dados provenientes das simulações numéricas foram comparados aos dados experimentais de velocidade fornecidos por dois anemômetros sônicos instalados 5,8 m à jusante do rotor, ao que foi verificada boa concordância, com diferenças da ordem de 1% para o anemômetro 1 e 6% para o anemômetro 2. Resultados de velocidade na linha de centro do túnel e perfis de velocidade à jusante foram comparados com recente estudo numérico, e revelam diferenças importantes entre dados obtidos pela SGE, principalmente no que se refere à detecção de picos e flutuações relacionados às escalas turbulentas, e dados obtidos através da modelagem clássica da turbulência, RANS. As perturbações ultrapassaram a marca dos 10 diâmetros à jusante e atingiram o final do domínio localizado a 15 diâmetros. A esteira não apresentou simetria axial, e o ponto de maior redução na velocidade do escoamento foi detectado fora da linha de centro do rotor. / 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 speed of 72 RPM, subject to a free stream wind velocity of 9 m/s, inside a wind tunnel in which dimensions are 36.6 m in width, 24.4 m in height and length of 170 m. To achieve that, the ANSYS FLUENT version 13.0 commercial code, based in the Finite Volume Method to numerically solve the Navier-Stokes equations in transient state, has been used, together with the Large Eddy Simulation (LES) to characterize the turbulence. Geometries of all the machine components have been created in CAD software. A disc shaped moving domain, containing the blades and hub, has been created separately, and later inserted into the main, static domain, using the Moving Mesh tool available in the software. Both domains have been filled with meshes composed by tetrahedra. Data collected at the numerical simulations have been compared to experimental wind speed data provided by two sonic anemometers installed 5.8 m downstream from the rotor, for which a good agreement has been found, with differences of approximately 1% to the anemometer 1 and 6% to the anemometer 2. Results of wind velocity at the tunnel centerline and velocity profiles downstream have been compared with recent numerical study, and show important differences between data obtained by LES, especially with regard to the detection of peaks and fluctuations related to the turbulent scales, and data obtained by the classic turbulence modeling, RANS. Disturbances have passed the 10 diameter mark and reached the end at the domain located at 15 diameters. The wake did not show axial symmetry and the point of maximum reduction in the flow speed was detected outside the rotor centerline.

O presente trabalho realiza um estudo do desempenho aerodinâmico da turbina eólica de duas pás e 10 m de diâmetro da UAE Phase VI, testada pelo NREL no túnel de vento NASA Ames, através do uso de dinâmica dos fluidos computacional (CFD). Para tanto são apresentados conceitos fundamentais para análise da performance do aerogerador, a metodologia aplicada para a análise numérica e os resultados obtidos. O modelo geométrico da turbina foi inserido em ambiente computacional num domínio com as mesmas dimensões da seção de testes do túnel de vento. A esse domínio foi empregada uma malha de elementos tetraédricos. A modelagem numérica e as simulações foram efetuadas através do código comercial ANSYS FLUENT 13.0 e utilizaram as equações médias de Reynolds e modelos de turbulência k  SST e Spalart-Allmaras. A turbina simulada possui ângulo de giro (yaw) e de cone de 0°. Os casos simulados foram de turbina com ângulos de passo das pás de 0° e 3°, para velocidades de ar na entrada do domínio de 5 m/s, 7 m/s e 9 m/s. As simulações foram feitas em regime transiente utilizando o método de malha móvel. Dados provenientes da simulação numérica são comparados aos dados experimentais de empuxo, torque e potência, divulgados pelo laboratório. Os modelos de turbulência testados apresentaram boa concordância com os resultados experimentais de empuxo. O torque e a potência foram bem previstos para velocidades de entrada do domínio baixas, mas foram subdimensionados para velocidades mais altas. A separação da camada limite foi prevista por ambos os modelos. Na comparação com resultados obtidos com outros autores para o mesmo caso, o início de descolamento da camada limite se deu antes do previsto. A metodologia adotada nas simulações numéricas realizadas mostrou-se adequada e representativa nas análises desse estudo. / This study makes a CFD analysis of the aerodynamic performance of the NREL UAE Phase VI two-bladed wind turbine, which have been tested in the NASA Ames wind tunnel. Fundamental concepts on the evaluation of turbine performance, the applied methodology for the numerical analysis and the results are presented. A numerical model has been inserted in a computational environment that has the same dimensions as the real wind tunnel section, and a tetrahedral mesh has been created to fill this domain. Numerical modeling and the simulations have been performed using the ANSYS FLUENT 13.0 commercial code, making use of the RANS equations and the k  SST and Spalart-Allmaras turbulence models. The simulated turbine has 0 degrees of cone and yaw angle. Simulations were performed in unsteady state using the moving mesh technique. Results are compared to experimental data regarding to thrust, torque and power. The k  SST and Spalart-Allmaras turbulence models have shown good agreement with experimental values of thrust. Torque and power have been adequately predicted to lower free flow velocities, but have been underpredicted to higher velocities. Separation of the boundary layer has been adequately predicted by both models, but the beginning of the separation occurred earlier than expected in comparison with results of other authors to the same case. The methodology used in the numerical simulations proved to be adequate and representative in this study.

The Íslendingasögur, written in Iceland in the thirteenth and fourteenth centuries, primarily describe the lives of Icelanders during the tenth and eleventh centuries. Many of these lives involve encounters with foreign peoples, both abroad and in Iceland, who are portrayed according to stereotypes which vary depending on the origins of those people. Notably, inhabitants of the places identified in the sagas as Írland, Skotland and Vínland are portrayed as being less civilized than the Icelanders themselves. This thesis explores the ways in which the Íslendingasögur emphasize this relative barbarity through descriptions of diet, material culture, style of warfare, and character. These characteristics are discussed in relation to parallel descriptions of Icelandic characters and lifestyle within the Íslendingasögur, and also in the context of a tradition in contemporary European literature which portrayed the Icelanders themselves as barbaric. Innovatively, comparisons are made with descriptions of barbarians in classical Roman texts, primarily Sallust, but also Caesar and Tacitus. Taking into account the availability and significance of classical learning in medieval Iceland, the comparison with Roman texts yields striking similarities between Roman and Icelandic ideas about barbarians. It is argued that the depiction of foreigners in the Íslendingasögur is almost identical to that of ancient Roman authors, and that the medieval Icelanders had both means and motive to use Roman ideas for inspiration in their own portrayal of the world. Ultimately it is argued that when the medieval Icelanders contemplated the peoples their Viking Age ancestors encountered around the world, they drew on classical ideas of the barbarian to complement the mix of oral tradition, literary inspiration and contemporary circumstance that otherwise form the Íslendingasögur.

Orientador: Jean Marcel Carvalho França / Banca: Karen Macknow Lisboa / Banca: Denise Aparecida Soares de Moura / Resumo: Propõe-se, nesta pesquisa, refletir sobre a formação do pensamento brasileiro no período que antecede ao denominado Romantismo, destacando a "participação", durante o momento de passagem da colônia para país independente, da literatura de viagem no processo de formação da identidade nacional. Através da leitura de alguns periódicos que circularam no Rio de Janeiro no início do século XIX, mais precisamente entre a chegada da corte (1808) e o lançamento da revista Nitheroy (1836), pretende-se demonstrar como a formação da cultura escrita nacional esteve intimamente ligada à ideia que os europeus tinham dos trópicos. Para tanto, a proposta é mapear em tais periódicos as menções aos viajantes estrangeiros e ao conteúdo de suas narrativas, de modo a conhecer o que a intelectualidade carioca dos primeiros decênios dos oitocentos pensava das imagens do Brasil e dos brasileiros vinculadas nestes escritos / Abstract: The objective of this work is to study the construction of the brazilian thought in the period that is right before the Romantism age, highlighting the participation of the type of literature known as 'travel literature' in the process of construction of the national identity when Brazil was being transformed from a colony into an independent country. Based on journals that were on circulation in the beginning of the 19th century, precisely in the period between the Court arrives in the country (1808) and the release of the magazine "Nitheroy" (1836), and conceiving them as the stands of the construction of the country identity, we aim to show how the formation of the national literature was attached to the idea that european people had about the tropical lands. For that matter, the purpose is to map in this periodics the messages for the foreign travellers and the content of this narratives, such as references, quotes and comments in order to indicate the books that the intelectuals from Rio de Janeiro read in the first decades of the 18th century / Mestre

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-23T14:11:12Z No. of bitstreams: 1 GabrielLeopoldinoPauloDeMedeiros_TESE.pdf: 18538026 bytes, checksum: 9019df0e1e126e6beab157e61c031b63 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-24T14:58:01Z (GMT) No. of bitstreams: 1 GabrielLeopoldinoPauloDeMedeiros_TESE.pdf: 18538026 bytes, checksum: 9019df0e1e126e6beab157e61c031b63 (MD5) / Made available in DSpace on 2018-01-24T14:58:01Z (GMT). No. of bitstreams: 1 GabrielLeopoldinoPauloDeMedeiros_TESE.pdf: 18538026 bytes, checksum: 9019df0e1e126e6beab157e61c031b63 (MD5) Previous issue date: 2017-07-18 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Durante as primeiras d?cadas do s?culo XX, Natal vivenciou um crescimento significativo. Ampliava seu tra?ado ? e, portanto, sua oferta de terra urbana ? a partir da cria??o de novos bairros, elabora??o de planos de interven??o, abertura de novos logradouros e redefini??o dos limites urbanos. Consolidavam-se tamb?m, concomitantemente, diversas redes t?cnicas, entre essas a do transporte p?blico, como as linhas de bonde e as ferrovias. Esse processo de moderniza??o revelou os crescentes interesses de diferentes articuladores sobre a produ??o da cidade e defini??o da legisla??o urban?stica durante a Rep?blica Velha (1889-1930). Esses indiv?duos, ou grupos de indiv?duos, atuaram, por meio do aforamento/enfiteuse de glebas urbanas, como detentores do dom?nio ?til de grandes fra??es de terra na capital potiguar. Nesse contexto, surge o questionamento: de que maneira o processo de consolida??o da posse da terra se relaciona com a defini??o do tra?ado dos logradouros p?blicos e dos sistemas de transporte em Natal? Parte-se da hip?tese de que a materializa??o de padr?es de concentra??o fundi?ria na cidade, intrinsecamente vinculados ? distribui??o de infraestrutura, aconteceu por meio da a??o de agentes sociais origin?rios, sobretudo, dos ?mbitos pol?tico e comercial-mercantil, que apresentavam interse??es significativas de seus interesses, o que intervinha diretamente no processo de defini??o da legisla??o urban?stica ? em especial no tocante ao instrumento do aforamento de terras urbanas. O principal objetivo desta an?lise ? compreender o papel da conforma??o dos padr?es f?sico-espaciais da emergente estrutura fundi?ria de Natal na constitui??o da malha vi?ria e das redes t?cnicas de circula??o. Destarte, busca-se contribuir n?o apenas em uma perspectiva hist?rica, mas tamb?m ao entendimento da cidade da contemporaneidade, mapeando as formas de estrutura??o urbana favorecidas pelo processo hist?rico e suas continuidades. Buscou-se tamb?m aprofundar o estudo das engrenagens e estrat?gias utilizadas pelos diversos agentes. Utilizou-se como fontes de dados prim?rios as Cartas de Aforamento do Munic?pio de Natal (1904-1930), Atos, Decretos e Mensagens do Governo da Prov?ncia e do Estado, Relat?rios e Resolu??es da Intend?ncia Municipal do Natal e o Almanak Laemmert, al?m da cartografia da ?poca. Os resultados da pesquisa permitiram a constru??o de uma periodiza??o que evidencia defini??es no tra?ado vi?rio como elementos determinantes da primeira disposi??o de padr?es de concentra??o fundi?ria. Posteriormente, esses padr?es atra?ram investimentos em infraestrutura de transportes e pavimenta??o. Consequentemente, essa atra??o estabeleceu valora??es diferenciadas nas distintas fra??es urbanas, que, por sua vez, passaram a captar novos investimentos. Dessa forma, essa rela??o dial?tica e c?clica vai ao longo do tempo definindo e redefinindo valores hierarquizados de acesso ? terra no contexto intraurbano. / During the first decades of the twentieth century, Natal passed through a significant physical growth. The city expanded its routes - and thus its urban lands supplies ? because of the foundation of new neighborhoods and later intervention plans, opening new streets and redefining urban boundaries. Several technical networks consolidated concomitantly, among them, public transportation, like tram lines and railroads. This modernization process revealed the interests of different articulators over urban production and urban planning legislation during the Old Republic (1889-1930). These individuals, or groups of individuals, acted through the emphyseuse of urban areas, as holders of the useful domain of large fractions of land in the capital of the state. In this context, a question arises: in which way the process of consolidation of the land ownership in Natal is related to the structuring of the roads networks and urban transportation systems? It is assumed that the land concentration patterns, intrinsically related to the infrastructure distribution, resulted from the action of several social agents ? mostly, from the political and commercial-mercantile spheres, which presented many intersections among themselves ? intervening in urban planning legislation, especially in the emphyseuse?s rules. The main objective of this analysis is to understand the role of emerging urban land structure conformation in the constitution of urban layout and circulation technical networks. The aim is to contribute not only to a historical perspective, but also to understanding the contemporary city, mapping the forms of urban structure favored by the historical process and its continuities, seeking to deepen the study of the gears and strategies used by the various agents. Many were the primary sources of information: Letters of Empowerment of the Municipality of Natal (1904-1930), Acts, Decrees and Messages of the Government of the Province and State, Reports and Resolutions of the Municipality of Natal and the Almanak Laemmert, moreover the cartography from the period studied. The results of the research allowed the construction of a periodization that evidences definitions in the road mesh as determinants of the first disposition of land tenure patterns. Subsequently, these standards attracted investments in transport infrastructure and paving. Consequently, this attraction established differentiated valuations in diverse urban fractions, which, in turn, captured new investments. In this way, this relationship is dialectical and cyclical and goes over time defining and redefining hierarchical values of access to land in the intra-urban context.

O experimento Unsteady Aerodynamics Experiment Phase VI, realizado no ano de 2000 pelo Laboratório Nacional norte-americano para as Energias Renováveis (NREL) no túnel de vento Ames da NASA, foi reproduzido numericamente neste trabalho. O objetivo é o estudo das características da esteira aerodinâmica produzida pela turbina eólica de duas pás e 10 metros de diâmetro, operando à velocidade de rotação constante de 72 RPM, sujeita a uma velocidade de corrente livre do vento uniforme de 9 m/s, em um túnel de vento cuja seção de testes mede 36,6 m de largura por 24,4 m de altura e o comprimento mede 170 m. Para isso, foi utilizado o programa comercial ANSYS FLUENT versão 13.0, baseado no Método dos Volumes Finitos para a solução numérica das Equações de Navier-Stokes em regime transiente em conjunto com a Simulação de Grandes Escalas (SGE) para resolver a turbulência. As geometrias de todos os componentes da máquina foram criadas em software CAD. Um domínio móvel em forma de disco, contendo as pás do rotor e o hub da máquina, foi criado separadamente, e posteriormente inserido no domínio principal, estático, usando a ferramenta Moving Mesh disponível no software FLUENT. Ambos os domínios foram preenchidos por malhas compostas por tetraedros. Dados provenientes das simulações numéricas foram comparados aos dados experimentais de velocidade fornecidos por dois anemômetros sônicos instalados 5,8 m à jusante do rotor, ao que foi verificada boa concordância, com diferenças da ordem de 1% para o anemômetro 1 e 6% para o anemômetro 2. Resultados de velocidade na linha de centro do túnel e perfis de velocidade à jusante foram comparados com recente estudo numérico, e revelam diferenças importantes entre dados obtidos pela SGE, principalmente no que se refere à detecção de picos e flutuações relacionados às escalas turbulentas, e dados obtidos através da modelagem clássica da turbulência, RANS. As perturbações ultrapassaram a marca dos 10 diâmetros à jusante e atingiram o final do domínio localizado a 15 diâmetros. A esteira não apresentou simetria axial, e o ponto de maior redução na velocidade do escoamento foi detectado fora da linha de centro do rotor. / 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 speed of 72 RPM, subject to a free stream wind velocity of 9 m/s, inside a wind tunnel in which dimensions are 36.6 m in width, 24.4 m in height and length of 170 m. To achieve that, the ANSYS FLUENT version 13.0 commercial code, based in the Finite Volume Method to numerically solve the Navier-Stokes equations in transient state, has been used, together with the Large Eddy Simulation (LES) to characterize the turbulence. Geometries of all the machine components have been created in CAD software. A disc shaped moving domain, containing the blades and hub, has been created separately, and later inserted into the main, static domain, using the Moving Mesh tool available in the software. Both domains have been filled with meshes composed by tetrahedra. Data collected at the numerical simulations have been compared to experimental wind speed data provided by two sonic anemometers installed 5.8 m downstream from the rotor, for which a good agreement has been found, with differences of approximately 1% to the anemometer 1 and 6% to the anemometer 2. Results of wind velocity at the tunnel centerline and velocity profiles downstream have been compared with recent numerical study, and show important differences between data obtained by LES, especially with regard to the detection of peaks and fluctuations related to the turbulent scales, and data obtained by the classic turbulence modeling, RANS. Disturbances have passed the 10 diameter mark and reached the end at the domain located at 15 diameters. The wake did not show axial symmetry and the point of maximum reduction in the flow speed was detected outside the rotor centerline.