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	Provedor de dados Anais da ABC (AABC) (1) Neotropical Ichthyology (1) Autor Arantes,Eudes J. (1) Gulliver,John S. (1) Haselbauer,Matthias A. (1) Lima,Alberto C.M. (1) Martinez,Carlos Barreira (1) Porto,Rodrigo M. (1) Schulz,Harry E. (1) Mais... Palavra-chave Air entrainment (2) Air-water flows (1) Computational fluid dynamics (1) Hydro acoustic noise (1) Labyrinth flow (1) Macrozoobenthos (1) Multiphase flows (1) Spillway aerators (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/report (1) Ano 2010 (1) 2007 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Proposal of a sluice-type fish pass Neotropical Ichthyology Haselbauer,Matthias A.; Martinez,Carlos Barreira. One-dimensional design of fish passes often leads to an unsatisfying solution. The problems are due to insufficient, if not completely missing, collaboration between biologists and civil engineers. In the present paper, a new type of fish pass is presented. A labyrinth flux develops in a system of sequential sluices and baffles in between, which uncouple the supercritical flow of the single sluices. A series of biological, hydraulic and numerical experiments was carried out in order to investigate the optimum configuration in terms of geometric issues, regarding the biological needs and performances of organisms to be transported. Following this optimization, fish can control the prevailing flow conditions quite well. Because the air entrainment into the... Tipo: Info:eu-repo/semantics/report Palavras-chave: Air entrainment; Labyrinth flow; Computational fluid dynamics; Macrozoobenthos; Hydro acoustic noise. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000200017 Lower nappe aeration in smooth channels: experimental data and numerical simulation Anais da ABC (AABC) Arantes,Eudes J.; Porto,Rodrigo M.; Gulliver,John S.; Lima,Alberto C.M.; Schulz,Harry E.. Bed aerators designed to increase air void ratio are used to prevent cavitation and related damages in spillways. Air entrained in spillway discharges also increases the dissolved oxygen concentration of the water, which can be important for the downstream fishery. This study considers results from a systematic series of measurements along the jet formed by a bed aerator, involving concentration profiles, pressure profiles, velocity fields and corresponding air discharges. The experimental results are, then, compared, with results of computational fluid dynamics (CFD) simulations with the aim of predicting the air discharge numerically. Comparisons with jet lengths and the air entrainment coefficients from the literature are also made. It is shown that... Tipo: Info:eu-repo/semantics/article Palavras-chave: Spillway aerators; Air entrainment; Air-water flows; Multiphase flows. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000200027 Registros recuperados: 2 Primeira ... 1 ... Última

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