Numerical Investigation on a Prototype Centrifugal Pump Subjected to Fluctuating Rotational Speed
Joint Authors
Zhang, Yu-Liang
Xiao, Jun-Jian
Zhao, Yan-Jun
Ji, Ying-Yu
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The rotational speed of pumps often encounters fluctuation in engineering for some reasons.
In this paper, in order to study the transient response characteristic of a prototype centrifugal pump subjected to fluctuating rotational speed, a closed-loop pipe system including the pump is built to accomplish unsteady flow calculations in which the boundary conditions at the inlet and the outlet of the pump are not required to be set.
The external performance results show that the head’s responsiveness to the fluctuating rotational speed is very good, while the flow rate’s responsiveness is slightly delayed.
The variation tendencies of the static pressures at the inlet and the outlet of the pump are almost completely opposite, wherein the variation tendency of the static pressure at the outlet is identical with that of the rotational speed.
The intensity of the turbulence energy in each impeller channel is relatively uniform in the transient flow calculations, while, in the quasi-steady flow calculation, it becomes weaker in a channel closed to the volute tongue.
The nondimensional flow rate and head coefficients are dependent on the rotational speed, and their variation tendencies are opposite to that of the fluctuating rotational speed as a whole.
American Psychological Association (APA)
Zhang, Yu-Liang& Xiao, Jun-Jian& Zhao, Yan-Jun& Ji, Ying-Yu. 2014. Numerical Investigation on a Prototype Centrifugal Pump Subjected to Fluctuating Rotational Speed. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-472146
Modern Language Association (MLA)
Zhang, Yu-Liang…[et al.]. Numerical Investigation on a Prototype Centrifugal Pump Subjected to Fluctuating Rotational Speed. Mathematical Problems in Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-472146
American Medical Association (AMA)
Zhang, Yu-Liang& Xiao, Jun-Jian& Zhao, Yan-Jun& Ji, Ying-Yu. Numerical Investigation on a Prototype Centrifugal Pump Subjected to Fluctuating Rotational Speed. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-472146
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472146