Abstract
The stall in a centrifugal pump impeller under a quarter-load condition is investigated by using a third-order SGS model named the DCNM, for a better understanding of the rotation effect on the stall phenomenon. The study of the distributions of the Reynolds stresses, the production term and the rotation term reveals that the production and the rotation jointly result in the non-uniform Reynolds stress distribution. Further study of the two components of the production and the rotation shows that they jointly transport a certain energy from the Reynolds component Rvv to Ruu.
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Project supported by the Key program of the Ministry of Education (Grant No. 113010A), the National Natural Science Foundation of China (Grant No. 51209206).
Biography: Xian-bei Huang (1991-), Male, Ph. D., Assistant Professor
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Huang, Xb., Liu, Zq., Li, Yj. et al. Study of the internal characteristics of the stall in a centrifugal pump with a cubic non-linear SGS model. J Hydrodyn 31, 788–799 (2019). https://doi.org/10.1007/s42241-018-0170-y
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DOI: https://doi.org/10.1007/s42241-018-0170-y