Weighted proper orthogonal decomposition of the swirling flow exiting the hydraulic turbine runner

•We focus on application of Proper Orthogonal Decomposition to hydraulic turbines.•Two flow quantities with vanishing integrals on the computational domain are found.•POD is applied on these flow quantities instead on the velocity field directly.•The property of vanishing integral is conserved for e...

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Veröffentlicht in:	Applied mathematical modelling 2016-03, Vol.40 (5-6), p.4057-4078
Hauptverfasser:	Bistrian, D.A., Susan-Resiga, R.F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Computation Decomposition Hydraulic turbines Mathematical models Perturbation methods Proper orthogonal decomposition Radial basis functions Reduced order modeling Reduced order models Swirling Turbines Unsteady swirling flows
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