Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump Milan Sedlář, Martin Komárek, Michal Vyroubal, Vít Doubrava, Michal Varchola and Peter Hlbočan EPJ Web of Conferences, 67 (2014) 02104 Published online: 25 March 2014 DOI: 10.1051/epjconf/20146702104