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Design optimization of mixed-flow pump impellers with various shaft diameters at the same specific speed

Title
Design optimization of mixed-flow pump impellers with various shaft diameters at the same specific speed
Author
윤준용
Keywords
Mixed-flow pump; Impeller; Hub ratio; Design optimization; Computational fluid dynamics (CFD); Response surface method (RSM)
Issue Date
2018-03
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 32, No. 3, Page. 1171-1180
Abstract
In this study, the hydraulic performance of a mixed-flow pump depending on the impeller hub ratio was analyzed using Computational-fluid-dynamics (CFD). The impeller inlet shape varies according to the hub ratio even at the same specific speed. It is important to ensure an optimum impeller design according to the hub ratio in order for the impeller shape to provide the desired performance at constant specific speed. The design variables of inlet part for meridional plane and vane plane development were defined for optimum impeller design. The objective functions were defined as the total head and total efficiency of the mixed-flow pump impellers. The optimum impeller design was carried out by controlling the design variables of impeller inlet parts by using the Response-surface-method (RSM). The tendency of impeller design variables depending on the hub ratio was identified by analyzing the optimum impeller design. Further, the impeller shape was designed on the basis of the tendency of the design variables depending on the hub ratio. Finally, the performance of an impeller with the designed shape was verified by numerical analysis.
URI
https://link.springer.com/article/10.1007/s12206-018-0220-yhttps://repository.hanyang.ac.kr/handle/20.500.11754/99162
ISSN
1738-494X; 1976-3824
DOI
10.1007/s12206-018-0220-y
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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