The aim of the current study is to investigate the effect of inlet blade angles on cavitation performance in a centrifugal pump. In order to reveal this relationship, both hub and shroud blade angles are considered and a two-phase three-dimensional computational fluid dynamics (CFD) study is carried out. Shear stress transport (SST) turbulence and Rayleigh–Plesset cavitation models are used in simulations. Inlet blade angles for both hub and shroud are changed and pump performance (head-discharge) and cavitation (head-inlet pressure) graphs are obtained for eight different designs. Afterward, numerical cavitation tests are conducted, required net positive suction head values of the each design are calculated, and variations are demonstrated. Results show that hub and shroud blade angle variations have no significant effect on the pump characteristic curves excluding for shroud blade angle at high discharge values. However, cavitation performance of the pump is excessively affected for both hub and shroud blade angle alterations. Increasing hub blade angle has slightly negative effect on cavitation performance of the pump. On the other hand, while increasing shroud blade angle from 20 deg to 30 deg have positive effect on cavitation performance, it is negatively affected from 30 deg to 50 deg.
Skip Nav Destination
Article navigation
February 2019
Research-Article
The Effect of Inlet Blade Angle Variation on Cavitation Performance of a Centrifugal Pump: A Parametric Study
Aydın Hacı Dönmez,
Aydın Hacı Dönmez
Mechanical Engineering Department,
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: adonmez@yildiz.edu.tr
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: adonmez@yildiz.edu.tr
Search for other works by this author on:
Zehra Yumurtacı,
Zehra Yumurtacı
Mechanical Engineering Department,
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: zyumur@yildiz.edu.tr
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: zyumur@yildiz.edu.tr
Search for other works by this author on:
Levent Kavurmacıoğlu
Levent Kavurmacıoğlu
Mechanical Engineering Department,
Istanbul Technical University,
Istanbul 34437, Turkey
e-mail: kavurmacio@itu.edu.tr
Istanbul Technical University,
Istanbul 34437, Turkey
e-mail: kavurmacio@itu.edu.tr
Search for other works by this author on:
Aydın Hacı Dönmez
Mechanical Engineering Department,
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: adonmez@yildiz.edu.tr
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: adonmez@yildiz.edu.tr
Zehra Yumurtacı
Mechanical Engineering Department,
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: zyumur@yildiz.edu.tr
Yildiz Technical University,
Istanbul 34349, Turkey
e-mail: zyumur@yildiz.edu.tr
Levent Kavurmacıoğlu
Mechanical Engineering Department,
Istanbul Technical University,
Istanbul 34437, Turkey
e-mail: kavurmacio@itu.edu.tr
Istanbul Technical University,
Istanbul 34437, Turkey
e-mail: kavurmacio@itu.edu.tr
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received October 18, 2017; final manuscript received June 8, 2018; published online June 29, 2018. Assoc. Editor: Hui Hu.
J. Fluids Eng. Feb 2019, 141(2): 021101 (10 pages)
Published Online: June 29, 2018
Article history
Received:
October 18, 2017
Revised:
June 8, 2018
Citation
Dönmez, A. H., Yumurtacı, Z., and Kavurmacıoğlu, L. (June 29, 2018). "The Effect of Inlet Blade Angle Variation on Cavitation Performance of a Centrifugal Pump: A Parametric Study." ASME. J. Fluids Eng. February 2019; 141(2): 021101. https://doi.org/10.1115/1.4040557
Download citation file:
Get Email Alerts
Related Articles
Numerical and Experimental Analysis of Cavitating Flow in a Low Specific Speed Centrifugal Pump With Different Surface Roughness
J. Fluids Eng (October,2017)
Modeling Viscous Oil Cavitating Flow in a Centrifugal Pump
J. Fluids Eng (January,2016)
Computational Fluid Dynamics-Based Pump Redesign to Improve Efficiency and Decrease Unsteady Radial Forces
J. Fluids Eng (January,2017)
Performance Analysis of Cavitating Flow in Centrifugal Pumps Using Multiphase CFD
J. Fluids Eng (June,2002)
Related Proceedings Papers
Related Chapters
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach
Introduction
Mixed-flow Pumps: Modeling, Simulation, and Measurements
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3