Hydraulic Characteristics of Vertical Vortex at Hydraulic Intakes

Autor:	Chao Wu, Xiao-ming Ju, Yun-liang Chen, Mao Ye
Rok vydání:	2007
Předmět:	Surface (mathematics) Mechanical Engineering Flow (psychology) Rotational symmetry Separation of variables Mechanics Condensed Matter Physics Vortex Physics::Fluid Dynamics Mechanics of Materials Condensed Matter::Superconductivity Modeling and Simulation TRACER Underwater Geology Spiral
Zdroj:	Journal of Hydrodynamics. 19:143-149
ISSN:	1878-0342 1001-6058
DOI:	10.1016/s1001-6058(07)60040-7
Popis:	The trace of vertical vortex flow at hydraulic intakes is of the shape of spiral lines, which was observed in the presented experiments with the tracer technique. It represents the fluid particles flow spirally from the water surface to the underwater and rotate around the vortex-axis multi-cycle. This process is similar to the movement of screw. To describe the multi-circle spiral characteristics under the axisymmetric condition, the vertical vortex would change not only in the radial direction but also in the axial direction. The improved formulae for three velocity components for the vertical vortex flow were deduced by using the method of separation of variables in this article. In the improved formulae, the velocity components are the functions of the radial and axial coordinates, so the multi-circle spiral flow of vertical vortex could be simulated. The calculated and measured results for the vertical vortex flow were compared and the causes of errors were analyzed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::de501e7b291a998014ce131c4be56610 https://doi.org/10.1016/s1001-6058(07)60040-7 Zobrazit plný text záznamu Full Text from ScienceDirect Full text from SpringerLink