Open AccessStudy on the influence of impeller area ratio parameter on performance and flow excitation of centrifugal pump
Author(s) -
Changsheng Chen,
Shan Li,
Ben Lü,
Zhen Lu,
Yi Zhang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/740/1/012041
Subject(s) - impeller , centrifugal pump , inlet , rotodynamic pump , flow (mathematics) , mechanics , specific speed , excitation , range (aeronautics) , volumetric flow rate , materials science , head (geology) , internal flow , variable displacement pump , control theory (sociology) , progressive cavity pump , mechanical engineering , engineering , physics , computer science , radial piston pump , geology , electrical engineering , control (management) , geomorphology , artificial intelligence , composite material
The internal flow passage of centrifugal pump involves many geometric parameters and area parameters, which are not independent but interrelated. Area ratio is a physical quantity which combines different area parameters together, and studies the area ratio relationship between the impeller outlet and the inlet, which can provide new ideas and methods for the improvement and optimization of centrifugal pump. In this paper, through numerical calculation, the hydraulic performance, flow characteristics and pressure pulsation characteristics of centrifugal pump under different area ratio parameters are compared. The results show that when the area ratio increases, the head and efficiency of the pump are better, and the flow excitation under the main excitation frequency decreases. In addition, the recommended area ratio value range is also given.