Sadia Riaz , Jussi Aaltonen , Tobias Pinkse , Kari Koskinen
{"title":"Numerical investigation and validation of multiphase flow in annular jet pump—a mixture model approach","authors":"Sadia Riaz , Jussi Aaltonen , Tobias Pinkse , Kari Koskinen","doi":"10.1016/j.jestch.2025.102100","DOIUrl":null,"url":null,"abstract":"<div><div>Slurry transport through pipelines is a common experience of multiphase flows in the mining industry, and there are many suitable CFD-based multiphase models for analysis. The Annular Jet Pump (AJP) is engineered to handle the complex flow dynamics associated with slurry transport, where the interactions between solid particles and the carrier fluid play a crucial role in determining the pumṕs performance. In this study, a multiphase mixture model is employed to simulate the behaviour of the slurry within the AJP, providing insights into the effects of dispersed particle size, dispersed phase concentration, nozzle convergence angle, and primary fluid́s flow rate on pump suction and pressure distribution. The CFD simulations are conducted to predict the performance characteristics, which are then validated against literature data (which is simulated and experimental). Variations in flow variables and turbulence variables are observed at the centreline of the AJP. The results demonstrate that the proposed Annular Jet Pumṕs design achieves efficient slurry transport and highlights the effectiveness of the multiphase mixture model in accurately predicting the pump’s performance under varying operational conditions. The trend in power input variation, the output’s mass flow rate, and Specific Energy Consumption are observed for a range of primary fluid́s volumetric flow rates. This integrated approach offers a comprehensive understanding of the fluid-particle interactions within the pump, contributing to efficient slurry transport systems in industrial applications.</div></div>","PeriodicalId":48609,"journal":{"name":"Engineering Science and Technology-An International Journal-Jestech","volume":"69 ","pages":"Article 102100"},"PeriodicalIF":5.4000,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Science and Technology-An International Journal-Jestech","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215098625001557","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Slurry transport through pipelines is a common experience of multiphase flows in the mining industry, and there are many suitable CFD-based multiphase models for analysis. The Annular Jet Pump (AJP) is engineered to handle the complex flow dynamics associated with slurry transport, where the interactions between solid particles and the carrier fluid play a crucial role in determining the pumṕs performance. In this study, a multiphase mixture model is employed to simulate the behaviour of the slurry within the AJP, providing insights into the effects of dispersed particle size, dispersed phase concentration, nozzle convergence angle, and primary fluid́s flow rate on pump suction and pressure distribution. The CFD simulations are conducted to predict the performance characteristics, which are then validated against literature data (which is simulated and experimental). Variations in flow variables and turbulence variables are observed at the centreline of the AJP. The results demonstrate that the proposed Annular Jet Pumṕs design achieves efficient slurry transport and highlights the effectiveness of the multiphase mixture model in accurately predicting the pump’s performance under varying operational conditions. The trend in power input variation, the output’s mass flow rate, and Specific Energy Consumption are observed for a range of primary fluid́s volumetric flow rates. This integrated approach offers a comprehensive understanding of the fluid-particle interactions within the pump, contributing to efficient slurry transport systems in industrial applications.
期刊介绍:
Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology.
The scope of JESTECH includes a wide spectrum of subjects including:
-Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing)
-Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences)
-Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)