Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation
Particulate-reinforced aluminum matrix composites produced by stirring casting method exhibit many advantages and are usually used in practical industries. The particulate flow and distribution during the stirring have significant effects on composite casting properties and performances. In this inv...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2020-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=51555&issue_ID=1005 |
| _version_ | 1819177790938808320 |
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| author | X. Shen F. Sun H. Zhao |
| author_facet | X. Shen F. Sun H. Zhao |
| author_sort | X. Shen |
| collection | DOAJ |
| description | Particulate-reinforced aluminum matrix composites produced by stirring casting method exhibit many advantages and are usually used in practical industries. The particulate flow and distribution during the stirring have significant effects on composite casting properties and performances. In this investigation, to study the effect of stirring parameters on particulate distribution, an experimental quenching apparatus was designed, and then A356/50μmSiCp prepared with different stirring speeds and positions were carried out. The particulate fractions at different locations of the prepared composites were quantitatively measured with micro-image analysis, and the charts of particulate distribution along axial directions were summarized and analyzed. Based on liquid-solid multiphase flow theory and multiple rotating reference frame models, a mathematical model of particulate-reinforced aluminum matrix composites stirring process established with consideration of relative flow between liquid and solid particle phases was applied to the experimental composite preparation. By comparing the simulation and experimental results, the effect of stirring condition on the composite slurry and particulate flow as well as the final particulate distribution were analyzed. The comparison shows that the simulated particle distribution exhibits well agreement with the experiment, indicating the validity and exactitude of the established model and method for actual composite stirring preparation. The study shows that low position of impeller would force more particles at the bottom region to flow with composite slurry, improving the particle distribution, and that high stirring speed can cause strong centrifugal force and radial flow of both composite slurry and particles, decreasing the particle uniformity in the composites. |
| first_indexed | 2024-12-22T21:32:16Z |
| format | Article |
| id | doaj.art-185ba91b4f6c4d678c22566b319d330e |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-22T21:32:16Z |
| publishDate | 2020-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-185ba91b4f6c4d678c22566b319d330e2022-12-21T18:11:53ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722020-01-01132715725.Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow SimulationX. Shen0F. Sun1H. Zhao2National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou, ChinaDepartment of Mechanical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UKNational Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou, ChinaParticulate-reinforced aluminum matrix composites produced by stirring casting method exhibit many advantages and are usually used in practical industries. The particulate flow and distribution during the stirring have significant effects on composite casting properties and performances. In this investigation, to study the effect of stirring parameters on particulate distribution, an experimental quenching apparatus was designed, and then A356/50μmSiCp prepared with different stirring speeds and positions were carried out. The particulate fractions at different locations of the prepared composites were quantitatively measured with micro-image analysis, and the charts of particulate distribution along axial directions were summarized and analyzed. Based on liquid-solid multiphase flow theory and multiple rotating reference frame models, a mathematical model of particulate-reinforced aluminum matrix composites stirring process established with consideration of relative flow between liquid and solid particle phases was applied to the experimental composite preparation. By comparing the simulation and experimental results, the effect of stirring condition on the composite slurry and particulate flow as well as the final particulate distribution were analyzed. The comparison shows that the simulated particle distribution exhibits well agreement with the experiment, indicating the validity and exactitude of the established model and method for actual composite stirring preparation. The study shows that low position of impeller would force more particles at the bottom region to flow with composite slurry, improving the particle distribution, and that high stirring speed can cause strong centrifugal force and radial flow of both composite slurry and particles, decreasing the particle uniformity in the composites.http://jafmonline.net/JournalArchive/download?file_ID=51555&issue_ID=1005a356/sicp；particulate flow and distribution; stirring preparation; liquid quenching; multiphase flow simulation. |
| spellingShingle | X. Shen F. Sun H. Zhao Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation Journal of Applied Fluid Mechanics a356/sicp；particulate flow and distribution; stirring preparation; liquid quenching; multiphase flow simulation. |
| title | Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation |
| title_full | Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation |
| title_fullStr | Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation |
| title_full_unstemmed | Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation |
| title_short | Investigation of Reinforced Particulate Flow and Distribution during Stirring Preparation of A356/SiCp with Experiment and Multi-phase Flow Simulation |
| title_sort | investigation of reinforced particulate flow and distribution during stirring preparation of a356 sicp with experiment and multi phase flow simulation |
| topic | a356/sicp；particulate flow and distribution; stirring preparation; liquid quenching; multiphase flow simulation. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=51555&issue_ID=1005 |
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