Author:
Chen Xinhui,Tang Zirui,Mo Yushi
Abstract
Abstract
Taking an extra-large-flow and high-power centrifugal pump as a prototype, a test model pump was designed according to the similarity theory and numerical simulation conversion. The model pump was manufactured using moldless casting technology and subjected to model test, serving as preliminary work for verifying and improving the performance of the prototype pump. The results show that the efficiency of the scaled-down model pump designed by similar conversion is about 7% lower than that of the prototype pump. The impeller and pump body of the model pump were processed using moldless casting technology, significantly reducing the manufacturing cycle. Furthermore, the test head of the model pump is close to the result of numerical simulation, and the test efficiency is 4.5% lower than the efficiency obtained by numerical simulation.
Subject
Computer Science Applications,History,Education
Reference12 articles.
1. Technology status and development prospects of high-lift and high flow pumps;Tong;Hydropower and Pumped Storage,2017
2. Analysis on advantages and disadvantages of large scale, long distance and transbasin diversion;Chen,2003
3. Numerical simulation of low specific speed American Petroleum Institute pumps in part-load operation and comparison with test rig results;Benigni;Journal of Fluids Engineering,2012
4. Unsteady CFD simulations of a pump in part load conditions using scale-adaptive simulation;Lucius;International Journal of Heat and Fluid Flow,2010
5. Numerical study of unsteady flow in a centrifugal pump;Majidi;Journal of Turbomachinery,2005