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Hydro Turbine in a Venturi Tube

By Mirjana PUHARIĆ, Mirko KOZIĆ, Marina KUTIN and Slavica RISTIĆ

Abstract

U radu su prikazani rezultati istraživanja hidroturbine u Venturijevoj cijevi za zadani broj okretaja i zadanom brzinom vode na ulazu u cijev. Rezultati su dobiveni komercijalnim softverom za numeričku dinamiku fluida. Ispitivanje je obuhvatilo usporedbu snage koju daju jedna i dvije suprotno smjerno rotirajuće hidroturbine u Venturijevoj cijevi. Numeričke simulacije za dvije turbine koje se okreću u suprotnim smjerovima s jednakim kutnim brzinama pokazale su da se javlja znatan pad snage na prednjoj turbini, dok je ukupna snaga nešto veća nego za jednu turbinu.This paper presents results of a research hydro turbine in a Venturi tube for given revolutions per minute and velocity of water at the entry of the tube. The results were obtained with commercial software for numerical fluid dynamics. The research was included comparison of power obtained with one and two contra-rotating hydro turbine in a Venturi tube. The numerical simulations, for two turbines rotating in opposite directions with equal angular velocities, showed that a considerable power drop occurred, whereas the total power is somewhat larger than for the one turbine

Topics: Kontrarotirajuća hidroturbina; Numerička dinamika fluida; Venturijeva cijev, Contra-rotating hydro turbine; Numerical fluid dynamics; Venturi tube
Publisher: Croatian Union of Mechanical Engineers and Naval Architects
Year: 2009
OAI identifier: oai:hrcak.srce.hr:50564

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