Jezik: | Slovenski jezik |
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Leto izida: | 2001 |
Tipologija: | 1.01 - Izvirni znanstveni članek |
Organizacija: | UM FS - Fakulteta za strojništvo |
Založnik: | Association of Mechanical Engineers and Technicians of Slovenia et al. |
UDK: | 621.224.24:532.57 |
COBISS: | 4612123 |
ISSN: | 0039-2480 |
Matična publikacija: | Strojniški vestnik |
Št. ogledov: | 272 |
Št. prenosov: | 84 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Angleški jezik |
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Sekundarni naslov: | Using numerical flow analysis to predict the efficiency of a Francis turbine |
Sekundarni povzetek: | This paper presents a numerical analysis of flow in a Francis turbine. We concentrate on flow -energy losses and efficiency prediction. The results, obtained by a separate analysis of each turbine component, are compared with the results of a separate analysis of flow in a spiral casing end a simultaneous calculation of the flow through the other turbine parts. After this we analysed flow in a Francis turbine at several operating points, an efficiency hill-chart diagram was drawn and compared with the measured one. The some calculation was made for a case where no measured iniet conditions were available. The effect of the grid density and turbulence models on the results is also presented. |
Sekundarne ključne besede: | Francis turbine;turbine efficiency;flow analysis;turbulence models;turbine francisove;izkoristek turbin;analize toka;modeli turbulentni; |
URN: | URN:NBN:SI |
Vrsta dela (COBISS): | Delo ni kategorizirano |
Strani: | str. 70-82 |
Letnik: | ǂLetn. ǂ47 |
Zvezek: | ǂšt. ǂ2 |
Čas izdaje: | 2001 |
ID: | 1748354 |