1. Draft Tube Surging Hydraulic Model Study;Wahl,1990
2. Draft tube surging times two: the twin vortex phenomenon;Wahl;Hydro Rev.,1994
3. Analysis of the cavitating part-load vortex dynamics of low-head hydraulic turbines;Houde,2011
4. Analysis of the swirling flow downstream the Francis turbine runner;Resiga;J. Fluids Eng.,2006
5. Performance Analysis of Draft Tube for GAMM Francis Turbine;Kubota,1996