Naslov
Numerical simulations of hydraulic transients in hydropower plant Jajce II

Autori
Škifić, Jerko ; Radošević, Adrijana ; Brajković, Đani ; Družeta, Siniša ; Čavrak, Marko

Izvornik
Engineering review : znanstveni časopis za nove tehnologije u strojarstvu, brodogradnji i elektrotehnici (1330-9587) Vol 33 (2013), No.1 (2013); 51-56

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
hydropower plant ; hydraulic transients ; unsteady pipe flow ; unsteady friction ; surge tank

Sažetak
Hydraulic transients in hydropower plant Jajce II (Bosnia and Herzegovina) were simulated with 1D unsteady pipe flow model. High accuracy of the model was accomplished with the use of non-conservative formulation of an unsteady pipe flow model incorporating a modified instantaneous acceleration-based unsteady friction model and second order flux limited numerical scheme. In order to apply the model, complex dual surge tank geometry needed to be represented with a unified surge tank. The numerical model was validated against the measured data on three simulation scenarios, defined with different turbine discharge reductions. Simulation results show a very good agreement between the computed and measured piezometric heads, both in amplitude and frequency of the oscillation.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti

POVEZANOST RADA