Author(s): A Ojima; K Kamemoto

Linked Author(s):

Keywords: Vortex method; Unsteady vortices; Swirling flow; Vortex rope; Draft tube

Abstract: In this study, as the vortex method (VM) has been dramatically developed as an easy-to-handle tool for analysis of unsteady vortex-flows in various engineering and scientific fields, its applicability into numerical investigation of the vortex rope phenomenon was examined in a draft tube model which was experimented by the group of Prof. Romeo Susan-Resiga in "Politehnica" University of Timisoara. From comparison of calculated results with experiments, it was confirmed that the unsteady features of the development of vortex rope can be successfully captured, and it is concluded that the vortex method is useful as an easy-to-handle numerical-test-stand of hydraulic machinery.

DOI: https://doi.org/10.1088/1755-1315/12/1/012065

Year: 2010