Obtaining the head characteristic of a Low Flow Centrifugal Pump by numerical methods

Hydraulics

Shablovskiy, A.^1 ; Kutovoy, E.^1

Bauman Moscow State Technical University, 5 Second Baumanskaya Street, Moscow

105005, Russia^1

关键词: Capacity curves;    Hydrodynamic model;    Least square methods;    Low flow;    Mathematical experiments;    Mathematical functions;    Output flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/492/1/012035/pdf
DOI  :  10.1088/1757-899X/492/1/012035

来源: IOP

【 摘 要 】

During the study of various problems related with centrifugal pumps, it would be extremely convenient to have a head characteristic (head-capacity curve) approximated by any mathematical function. In so doing, in the field of small pump output flow experiments show that its characteristic is linear. In order to verify that this characteristic is truly linear, a mathematical experiment was carried out using the methods of hydrodynamic modeling and its approximation was carried out using the least square method and the maximum deviation from it was calculated.