This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Numerical Analysis of the Effect of an Idler Disk on Centrifugal Pump Performance
Technical Paper
2021-01-0687
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
Designing a centrifugal pump impeller comes with challenges due to multiple parameters that affect the pump efficiency. A high velocity gradient exists in the flow between the impeller shroud and sidewall of the pump casing due to one surface stationary and the other moving at a high velocity. The internal rotating flow in the impeller shroud-sidewall gap is a major problem that leads to a decrease in pump performance. This study presents a design modification of the gap between the impeller shroud and the pump casing sidewall using an idler disk located in between, which rotates freely during pump operation. In this paper, a numerical analysis was performed to investigate the idler disk's effect on the pump performance for different volumetric flow rate values and idler disk geometries. ANSYS-2019-R1 was used (FLUENT solver) to carry out the computational fluid dynamics (CFD) analysis for evaluating the performance of the baseline and modified designs in a centrifugal pump. The flow field between the impeller shroud and sidewall of pump casing was investigated using 3-D Naiver-Stokes equations with a Realizable k-є turbulence model. Standard water was used as the working fluid, and the simulation was conducted at a fixed angular velocity of the pump impeller. The flow pattern, velocity distribution, pressure distribution, shear stress, and velocity gradient in the impeller shroud-sidewall gap are presented in this study. The numerical analysis provided an idea of how the freely rotating disk behaved during pump operation. A comparative study was conducted between the flow field's simulation results for the existing impeller model (without idler disk) and modified designs (with different idler disks). The best performing case of centrifugal pump operation with an idler disk was identified.
Recommended Content
Authors
Citation
Hadi, N., Jawad, B., Hermez, M., Metwally, H. et al., "Numerical Analysis of the Effect of an Idler Disk on Centrifugal Pump Performance," SAE Technical Paper 2021-01-0687, 2021, https://doi.org/10.4271/2021-01-0687.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 | ||
Unnamed Dataset 6 |
Also In
References
- Chakraborty , S. , Choudhary , K. , Datta , P. , and Debbarna , B. Performance Prediction of Centrifugal Pump With Variations of Blade number Journal Science India Research 3 1 373 378 2011
- Bacharoud , C. , Filios , A. , Mentzos , M. , and Margaris , P. Parametric Study of a Centrifugal Pump by Varying the Outlet Blade Angle The Open Mechanical Engineering Journal 2 1 75 83 2008
- Ashri , M. , Saravanan , K. , Santosh , P. , and Idris , I. Modal Analysis of a Centrifugal Pump Impeller Using Finite Element Method MATEC Web of Conference 13 2014
- Will , C. , Benra , K. , and Dohmen , J. Investigation of the Flow in the Impeller Side Clearances of a Centrifugal Pump with Volute Casing Journal of Thermal Science 21 3 197 208 2012
- Will , C. , Benra , K. , and Dohmen , J. Numerical and Experimental Investigation of the Flow in the Side Cavities of a Centrifugal Pump The 12th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery ISROMAC13-2010-0002 Honolulu Hawaii USA 2010
- Turton , K.R. Principles of Turbomachinery 2nd Chapman and Hall 1995
- Hadi , N. , Jawad , B. , Liu , L. , and Hermez , M. CFD Simulation and Design Improvement of Internal Rotating Flow of Turbomachine Proceedings of the ASME 2020 Fluids Engineering Division Summer Meeting 2020
- Fernandez , J. , Barrio , R. , Blanco , E. and Parrondo , J. Numerical Investigation of a Centrifugal Pump Running in Reverse Mode Journal of Power and Energy 224 367 373 2010
- 2017
- 2017