Poređenje snage za jednu i dve kontrarotirajuće hidro turbine u Venturijevoj cevi - I deo / Comparison of power in one and two contra-rotating hydro turbines in a Venturi tube: Part I

Autor:	Mirko Kozić
Jazyk:	angličtina
Rok vydání:	2009
Předmět:	kontrarotirajuća hidro turbina Venturijeva cev numerička dinamika fluida contra-rotating hydro turbine Venturi tube numerical fluid dynamics Military Science Engineering (General). Civil engineering (General) TA1-2040
Zdroj:	Vojnotehnički Glasnik, Vol 57, Iss 2, Pp 16-30 (2009)
Druh dokumentu:	article
ISSN:	0042-8469 2217-4753
DOI:	10.5937/vojtehg0902016K
Popis:	U radu su prikazani rezultati istraživanja koje je obuhvatilo poređenje snage koju daju jedna i dve kontrarotirajuće hidro turbine u Venturijevoj cevi, za zadati broj obrtaja i brzinu vode na ulazu u cev. Rezultati su dobijeni komercijalnim softverom za numeričku dinamiku fluida. Numeričke simulacije za dve turbine koje se obrću u suprotnim smerovima sa jednakim ugaonim 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 the results of research into the comparison of power obtained with one and two contra-rotating hydro turbines in a Venturi tube for the given number of revolutions per minute and the given water velocity at the tube entry. The results were obtained with commercial software for numerical fluid dynamics. The numerical simulations for two turbines rotating in opposite directions with equal angular velocities showed that a considerable power drop occurred in the front turbine, whereas the total power is somewhat larger than that for one turbine.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/802e0ad965214009b9f27016294bf092 Zobrazit plný text záznamu View record in DOAJ