2016
DOI: 10.1590/2318-0331.011615129
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Abstract: Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado. ABSTRACTSeveral fish transposition systems (MTP´s) have been employed to allow the fish upstream migration through river dams for spawning. The design of MTP´s of the type of vertical slot fishways requires not only the analysis of the pool hydraulic behavior to evaluate the velo… Show more

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Cited by 2 publications
(3 citation statements)
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“…In the regions near the baffles, especially the areas close to the smallest baffle, maximum volumetric dissipated power values of about 1120 W/m 3 were observed. This pattern of volumetric dissipated power distribution within the vertical slot fishway pool has been reported in experimental studies (VIANA et al, 2016) and numerical simulations (BOMBAČ et al, 2014). This region of occurrence of maximum values of the volumetric dissipated power of the flow is the same as that associated with higher velocities and maximum turbulence kinetic energy.…”
Section: Volumetric Dissipated Power In the Poolssupporting
confidence: 70%
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“…In the regions near the baffles, especially the areas close to the smallest baffle, maximum volumetric dissipated power values of about 1120 W/m 3 were observed. This pattern of volumetric dissipated power distribution within the vertical slot fishway pool has been reported in experimental studies (VIANA et al, 2016) and numerical simulations (BOMBAČ et al, 2014). This region of occurrence of maximum values of the volumetric dissipated power of the flow is the same as that associated with higher velocities and maximum turbulence kinetic energy.…”
Section: Volumetric Dissipated Power In the Poolssupporting
confidence: 70%
“…Analysis of the mean velocity fields in planes parallel to the bottom showed the general flow characteristics observed in previous studies: a main jet between consecutive slots and the formation of two recirculation regions adjacent to it -a larger one between the larger baffles and a smaller one between the smaller baffles (e.g., SANAGIOTTO et al, 2012;VIANA et al, 2016). In general, analysis of the different velocity fields in planes parallel to the bottom indicates that there are no significant variations in the pattern of flow behavior with depth ( Figure 4) and discharge ( Figure 5).…”
Section: Mean Velocities and Flow Patternssupporting
confidence: 62%
“…Para que ocorram maiores níveis de eficiência no mecanismo de escada, este deve levar em consideração a otimização da velocidade e vazão, para favorecer o deslocamento com redução do tempo de transição e conforto para as diferentes espécies de peixes que ocorrem no riacho, além de efetuar uma elevação de amplitude de escoamento do canal e possibilitar a migração de ida e volta (VIANA, 2005). Contudo, ainda é pouco discutido a implementação de escada de peixes para riachos de 1ª ou 2ª ordem, sendo uma medida incipiente para esses ambientes, mas que poderia contribuir para o fluxo de indivíduos entre populações acima e abaixo dessas estruturas, minimizando esse efeito.…”
Section: Medidas De Mitigaçãounclassified