Affiliation:
1. Department of Mechanical Engineering, Faculty of Engineering , Mustansiriyah University , Baghdad , Iraq
Abstract
Abstract
In centrifugal pumps, it is important to select appropriate turbulence model for the numerical simulation in order to obtain reliable and accurate results. In this work, ten turbulence models in 3-D transient simulation for the centrifugal pump are chosen and compared. The pump performance is validated with experimental results. The numerical results reveal that the SST turbulence model was closer to the experimental results in predicting head. In addition, the pressure variation trend for the ten models is very similar which increases and then decreases from the inlet to outlet of the pump along the streamline. The SST k-ω model predicts the performance of the pump was more accurately than other turbulent models. Furthermore, the results also found that the error is the least at design operation condition 300(l/min), which is around 1.98 % for the SST model and 2.14 % and 2.38 % for the LES and transition omega model. Within 7.61 %, the errors at higher flow rate 350(l/min) for SST. The error for SST model is smaller as compared to different turbulent models. For the Realizable k-ɛ model, the errors fluctuate were more high than other models.
Subject
Applied Mathematics,General Physics and Astronomy,Mechanics of Materials,Engineering (miscellaneous),Modelling and Simulation,Computational Mechanics,Statistical and Nonlinear Physics
Reference35 articles.
1. G. Paresh, and O. Moniz, Practical centrifugal pumps, Elsevier, 2011.
2. A. Al-Obaidi, Experimental and numerical investigations on the cavitation phenomenon in a centrifugal pump, Diss. University of Huddersfield, 2018.
3. H. M. Lokman and R. B. Fdhila. Literature review of accelerated CFD simulation methods towards online application, Energy Procedia 75 (2015), 3307–3314.10.1016/j.egypro.2015.07.714
4. C.M.S.C.E.C.M.A.W.V. Advantages and Disadvantages of CFD. 12Jun / 2013.
5. M. Ennouri, H. Kanfoudi, A. Bel Hadj Taher and R. Zgolli, Numerical flow simulation and cavitation prediction in a centrifugal pump using an SST-SAS turbulence model, J. Appl. Fluid Mech. 12(1) (2019), 25–39.10.29252/jafm.75.253.28771
Cited by
46 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献