Research Article
Investigation of the Influence of Varying Operation Configurations on Flow Behaviors Characteristics and Hydraulic Axial-Flow Pump Performance
@INPROCEEDINGS{10.4108/eai.24-11-2022.2332719, author={Ahmed Ramadhan Al-Obaidi and Hussam Ali Khalaf and Jassim Alhamid}, title={Investigation of the Influence of Varying Operation Configurations on Flow Behaviors Characteristics and Hydraulic Axial-Flow Pump Performance }, proceedings={Proceedings of the 4th International Conference on Science Education in The Industrial Revolution 4.0, ICONSEIR 2022, November 24th, 2022, Medan, Indonesia}, publisher={EAI}, proceedings_a={ICONSEIR}, year={2023}, month={6}, keywords={numerical analysis varying operation configurations flow behaviours characteristics axial-flow pump impeller}, doi={10.4108/eai.24-11-2022.2332719} }- Ahmed Ramadhan Al-Obaidi
Hussam Ali Khalaf
Jassim Alhamid
Year: 2023
Investigation of the Influence of Varying Operation Configurations on Flow Behaviors Characteristics and Hydraulic Axial-Flow Pump Performance
ICONSEIR
EAI
DOI: 10.4108/eai.24-11-2022.2332719
Abstract
To investigate the varying operating conditions characteristics in the axial flow pumps, The Computational Fluid Dynamics method is applied to achieve the unsteady flow simulation on flow pattern characteristics and hydraulic pump performance according to the turbulent model type of RNG k-ε turbulence. The reliability and accuracy of the CFD simulation results are compared and verified with a model test. Outcomes demonstrate that the flow field characteristics are changing with operating conditions change. The pressure variations are great near the tip blade, because of the effect of clearance backflow and high interactions flow in this region under the large flow condition. The results display that flow separation and tip leakage flow are accompanied by the high magnitude of the dynamic pressure value. The tip blade plays an important role at different flow rates due to the mixing and separation dominates. Hence, the tip blade deviation extremely influences the stable and safe operation of pump stations and axial pumps.
