310 research outputs found
Wind tunnel techniques for investigation and optimization of sailing yachts aerodynamics
No full textFontamara reescrito no Brasil em 1935
Full text linkDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Estudos da Tradução, Florianópolis, 2014.O romance Fontamara, do escritor italiano Ignazio Silone (1900-1978), é publicado pela primeira vez em 1933, pela editora Verlag Oprecht und Helbling de Zurique, com a tradução em língua alemã de Nettie Sutro. Por razões políticas e ideológicas, o texto é impedido de circular oficialmente no sistema literário italiano nos anos do fascismo. O próprio autor vive um período de exílio e não pode voltar à Itália, pois seria preso pela polícia fascista, por ser considerado um subversivo. No Brasil, o texto é traduzido por Aristides Lobo e publicado pela editora Cultura Política, em 1935, dois anos após a primeira edição. Pensando nas tensões políticas e nas mudanças sociais e econômicas que ocorrem no Brasil da década de 30, e na posição que assume a literatura traduzida dentro de uma cultura, o presente estudo investiga quais são as principais motivações que levam à publicação do texto Fontamara em 1935, no Brasil. As reflexões partem da perspectiva de tradução como reescritura, proposta entre outros teóricos por André Lefevere (2007), que trata do papel das reescrituras dentro de um sistema literário. Deste complexo processo que é o ato tradutório, participam tanto a figura do tradutor (reescritor), como mediador, quanto outros agentes, que determinam que tipo de texto pode ou não circular entre o público leitor, segundo aquele que Lefevere chama de sistema de mecenato.Abstract : The Fontamara novel, by Italian writer Ignazio Silone (1900-1978), is first published in 1933, by Verlag Oprecht und Helbling from Zurich, with a translation into German by Nettie Sutro. For political and ideological reasons, the text is prevented from circulating officially inside the Italian literary system, during the years of fascism. The author himself experiences a period of exile and cannot return to Italy, where he would be arrested by the fascist police, under the accusation of being a subversive element. In Brazil, the novel is translated by Aristides Lobo and published by Cultura Política in 1935, two years after its first edition. While considering the political tensions and social and economic changes taking place in Brazil in the 30s, and the role of translated literature within a culture, this study investigates the main motivations that lead to the publication of Fontamara in 1935, in Brazil. These reflections are made from the perspective of translation as rewriting, a conjecture proposed among other theorists by André Lefevere (2007), who deals with the role of rewriting within a literary system. The complex process of translation involves both the figure of the translator (rewriter ), as a mediator, as well as that of other agents who determine what kind of text may or may not circulate among the reading public, according to a scheme that Lefevere calls the patronage system
Porous plates at incidence: Dataset
No full textThis dataset corresponds to the manuscript - porous plates at incidence. This paper investigates the effect of permeability on two-dimensional rectangular plates at incidences. The flow topology is investigated for Reynolds number () values between 30 and 90, and the forces on the plate are discussed for , where the wake is found to be steady for any value of the Darcy number () and the flow incidence (). At , for a plate normal to the stream and vanishing , the wake shows a vortex dipole with a stagnation point on the plate surface. With increasing , the separation between the vortex dipole and the plate increases; the vortex dipole shortens and is eventually annihilated at a critical . For any value of below the critical one, the vortex dipole disappears with decreasing . However, at low , the two saddle-node pairs merge at the same , annihilating the dipole; while at high , they merge at different , resulting in a single recirculating region for intermediate incidences. The magnitudes of lift, drag, and torque decrease with . Nevertheless, there exists a range of and , where the magnitude of the plate-wise force component increases with , driven by the shear on the plate's pressure side. Finally, the analysis of the fluid impulse suggests that the lift and drag reduction with are associated with the weakening of the leading and trailing edge shear layer, respectively. The present findings will be directly beneficial in understanding the role of permeability on small permeable bodies
An Accelerating Wind Tunnel for Testing Untethered Bodies in Transverse Gusts - Dataset
No full textDataset corresponds to the manuscript - An Accelerating Wind Tunnel for Testing Untethered Bodies in Transverse Gusts.
The manuscript abstract states:
Understanding the gust response of free-falling bodies such as plant seeds and debris is critical in predicting their dispersal. Furthermore, gusts can significantly affect the performance and survivability of low-inertia aerial vehicles. However, current methodologies for studying common gusts, particularly transverse gusts, which are characterised by the sudden appearance of a flow velocity component orthogonal to the flyer’s velocity, are not applicable to untethered or free-falling bodies. This article introduces a novel approach that addresses this limitation through an accelerating reference frame generating a fictitious force that temporarily scales and redirects the gravitational force. This approach is demonstrated through a first-of-its-kind vertical wind tunnel that accelerates horizontally in the direction normal to the flow with the same acceleration as the gust. A preliminary characterisation of the facility is presented. The tunnel acceleration generates the same pressure gradient as irrotational, uniform transverse gusts, without introducing the shear layer typical of K¨ussner’s gusts. The gust response of a free-falling dandelion diaspore to a discrete transverse gust (Wagner-type) is demonstrated, but the proposed approach is suitable for arbitrary time series of transverse gusts, including Theodorsen-type periodic gusts. For the first time, this novel approach will allow investigating the dynamic response of untethered bodies to transverse gusts, including micro and nano drones, unpowered microrobots, plant seeds, debris, and more.These folders contain the experimental data and figures as used in the publication "An Accelerating Wind Tunnel for Testing Untethered Bodies in Transverse Gusts" (Experiments in Fluids - Accepted).
Data set authors: Ignazio Maria Viola, Aditya Potnis, Soumarup Bhattacharyya, Evan J. Williams, Doug Halley, and David Murphy
Data set submitted to: Edinburgh DataShare
The data used in this article is organised in the following files:
## Figures
Contains figures in subfolders.
### Figures_in_paper_EPS_format
Folder contains figures in .EPS format as presented in the paper.
### Figures_SVG_format
Folder contains figures in .SVG format.
### Figures_stills_videos_for_Fig_8
Folder contains figures and videos used to create composite figure 8.
### Matlab_figures
Folder contains figures for particle image velocimetry of tunnel in .MAT format.
## Data_sets
Contains data stored in MATLAB .MAT file format. Files are named according to the data they contain
An investigation of aerodynamic force modelling for IMS rule using wind tunnel techniques
Full text linkPIV dataset for 'The leading-edge vortex of yacht sails' (OE, Arredondo-Galeana and Viola, 2018, Fig. 9, 10, 11, 12)
No full textMatlab files for Figures 9, 10 and 11 of journal paper "The leading-edge vortex of yacht sails" of article in press in Ocean Engineering. All velocity values to be normalised with Ufreestream = 0.114 m/s, x and y data in mm. 1) Fig9_Averaged_Flow_Fields data set contains the averaged velocity fields of planes A, B and C in x,y,u,v format (117649 rows, 1 column or a 343x343 matrix). 2) Fig10_Fig11_Instantaneous_Flow_Fields data set contains the instantaneous velocity fields of planes A, B and C in x,y,u,v format (117649 rows, 306 columns or a 343x343x306 matrix). 3) Fig10_Fig11_Gamma2_Contours contains the Gamma2 contours and the subtracted flow field for planes A, B and C, presented in Fig 10 and Fig 11. An additional XY dataset is provided for providing a reference plane. 4) Supplementary material in PDF format for Derivation_of_kappa. 5) Supplementary material in PDF format for Gamma2contours used for kappas used in Fig12. 6) Supplementary material in PDF.format for Fig12 calculated valuesArredondo Galeana, Abel; Viola, Ignazio Maria. (2018). PIV dataset for 'The leading-edge vortex of yacht sails' (OE, Arredondo-Galeana and Viola, 2018, Fig. 9, 10, 11, 12), [dataset]. University of Edinburgh. http://dx.doi.org/10.7488/ds/2328
Flow over a swift shaped wing and delta wing (RSOS, Muir et al., 2017, Fig. 4, 5, 6, 7 and 8)
No full textThe files named "Set_n_Re" contain the X,Y,u and v of every image. The files named "Set_n_Re_data" contain the results of applying the Q-criterion and the Gamma2 criterion to the previous files. These files contain variables Q, Gamma, hi, ho. Where Q is the Q-criterion, Gamma is the Gamma2 criterion, hi is the velocity field component in the X direction and ho is the velocity field component in the Y direction, after the convection velocity subtraction performed in the Gamma2 criterion.Matlab files with data of Fig. 4, 5, 6, 7 and 8 in RSOS, Muir et al., 2017.Maria Viola, Ignazio; Arredondo-Galeana, Abel. (2017). Flow over a swift shaped wing and delta wing (RSOS, Muir et al., 2017, Fig. 4, 5, 6, 7 and 8), [dataset]. University of Edinburgh. School of Engineering. Institute of Energy Systems. http://dx.doi.org/10.7488/ds/2238
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