Research Center for Engineering of
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Title: Axisymmetric swirling flow simulation of the draft tube vortex in Francis turbines at partial discharge
Published In: 24th IAHR Symposium on Hydraulic Machinery and Systems - International Journal of Fluid Machinery and Systems
Description: The paper addresses the following fundamental question: is it possible to compute the circumferentially averaged flow field induced by the precessing vortex rope by using an axisymmetric turbulent swirling flow model? In other words, instead of averaging the measured or computed 3D velocity and pressure fields we would like to solve directly the circumferentially averaged governing equations.
Publication year: 2008
Keywords:Draft tube, vortex rope, turbulent axisymmetric flow, stagnant region model
Download Paper: Paper
Authors: SUSAN-RESIGA Romeo , MUNTEAN Sebastian , STEIN Peter , AVELLAN Francois ,
Type: International Conference Proceedings
Laboratory: Numerical Simulation and Parallel Computing Laboratory