- Tytuł:
- Analysis of numerical instability of centrifugal pumps operational characteristics
- Autorzy:
- Lipej, Andrej
- Powiązania:
- https://bibliotekanauki.pl/articles/1819164.pdf
- Data publikacji:
- 2020
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
centrifugal pump
convergence
numerical analysis
pump characteristics
pompa odśrodkowa
konwergencja
analiza numeryczna
charakterystyka pompy - Opis:
- In recent years, computational fluid dynamics has been increasingly used in the development of various types of rotating machines. In the case of water turbines and pumps, a large number of researches have been published recently, related to the use of different numerical methods for prediction of efficiency, cavitation characteristics and different dynamic phenomena. For basic analysis an accurate result near the optimal operating regime is sufficient, but for detailed analysis the numerical analyses in the wider field of operating conditions are necessary. Thus, some otherwise known physical phenomena that occur in the part-load and full-load regime may be encountered. In these areas, due to the nature of the flow, various non-stationary phenomena occur that are dominant for such operating regimes. This paper presents the problems that arise if only stationary results are taken into account, and some recommendations for avoiding subsequent problems in the operation of centrifugal pumps.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2020, 4, 4; 357--364
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł