Open AccessThe Distribution of Pressure and Vorticity of Impellers with Single-Rotary and Multi-Rotary
Author(s) -
Yue Wang,
Liu Jin,
Jianhua Xu,
Wei Ren
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1570/1/012039
Subject(s) - impeller , vorticity , mechanics , slip factor , flow (mathematics) , vorticity equation , computational fluid dynamics , internal flow , materials science , mechanical engineering , physics , classical mechanics , engineering , vortex
The screw-type centrifugal pumps with different impellers are studied. The structure of single-rotary and multi-rotary impellers are designed by the CAD method. The governing equation of fluid flow and SST k - ω model are applied to simulate the internal flow field by computational fluid dynamics method. The pressure distribution and vorticity distribution are calculated and analyzed. It is found that the pressure distribution and vorticity distribution of the two types of impellers are significantly different. The pressure distribution of single-rotary impeller is relatively uniform. The vorticity of single-rotary impeller is larger than multi-rotary impeller.