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Numerical Simulation of Hydraulic Transients in Rijeka HPP

Jerko Škifić ; Tehnički fakultet Sveučilišta u Rijeci, Rijeka, Croatia
Nelida Črnjarić-Žic ; Tehnički fakultet Sveučilišta u Rijeci, Rijeka, Croatia
Bojan Crnković ; Tehnički fakultet Sveučilišta u Rijeci, Rijeka, Croatia

Sažetak

In this work a new approach considering numerical modelling of
waterhammer dissipation and attenuation is proposed. The classical
Allievi liquid flow model has been extended with the Brunone unsteady
friction model which includes separation of the local and convective
unsteady friction factor. A widely-adopted approach in solving this model
is treatment of the unsteady friction term as a classical source term, while
the authors propose a non-conservative formulation, due to the existence
of a non-conservative source term. The second order flux limited scheme
is applied to the proposed formulation and is applied to simulations of
transient flow in Rijeka HPP.

Ključne riječi

Hydroelectric power plants; Hyperbolic conservation laws; Hydraulic transients; Pipe flow; Unsteady flow; Unsteady friction; Water hammer

Hrčak ID:

40356

URI

https://hrcak.srce.hr/40356

Datum izdavanja:

31.3.2008.

Posjeta: 1.593 *