Qingzhao Liu , Xubin Zhang , Xiaohong Xiong , Fumin Wang , Guobing Li , Shuai Liu , Qi Shen , Zhiwei Zhang , Yang Qin , Bingxin Zhu , Zheng Wang
{"title":"不同螺旋搅拌桨动力特性和流场分布的 CFD 仿真","authors":"Qingzhao Liu , Xubin Zhang , Xiaohong Xiong , Fumin Wang , Guobing Li , Shuai Liu , Qi Shen , Zhiwei Zhang , Yang Qin , Bingxin Zhu , Zheng Wang","doi":"10.1016/j.cep.2024.110033","DOIUrl":null,"url":null,"abstract":"<div><div>Stirred reactors are widely used in various industries, and the stirring paddle structure has a significant effect on its power consumption. Therefore, in this study, different spiral stirring paddles were investigated. The effects of the ratio of paddle length to leads (<em>Ls</em>/<em>S</em>) design values and number of blades on the power characteristics and internal flow field of the reactor are discussed in detail, and the correlation equation of power number (<em>Np</em>) concerning <em>Re</em> and <em>Ls</em>/<em>S</em> values is fitted. It was found that the <em>Np</em> of stirring paddles increased and then decreased as the <em>Ls</em>/<em>S</em> value increased, and the effect of the number of blades on the <em>Np</em> gradually reduced. When the <em>Ls</em>/<em>S</em> value is equal to 0.6, the high-speed region of the flow field is the largest and the mixing effect is the best. The conclusions obtained can provide a reference for the energy-saving optimal design of spiral stirring paddles.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"205 ","pages":"Article 110033"},"PeriodicalIF":3.8000,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"CFD simulation of power characteristics and flow field distribution of different spiral stirring paddles\",\"authors\":\"Qingzhao Liu , Xubin Zhang , Xiaohong Xiong , Fumin Wang , Guobing Li , Shuai Liu , Qi Shen , Zhiwei Zhang , Yang Qin , Bingxin Zhu , Zheng Wang\",\"doi\":\"10.1016/j.cep.2024.110033\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Stirred reactors are widely used in various industries, and the stirring paddle structure has a significant effect on its power consumption. Therefore, in this study, different spiral stirring paddles were investigated. The effects of the ratio of paddle length to leads (<em>Ls</em>/<em>S</em>) design values and number of blades on the power characteristics and internal flow field of the reactor are discussed in detail, and the correlation equation of power number (<em>Np</em>) concerning <em>Re</em> and <em>Ls</em>/<em>S</em> values is fitted. It was found that the <em>Np</em> of stirring paddles increased and then decreased as the <em>Ls</em>/<em>S</em> value increased, and the effect of the number of blades on the <em>Np</em> gradually reduced. When the <em>Ls</em>/<em>S</em> value is equal to 0.6, the high-speed region of the flow field is the largest and the mixing effect is the best. The conclusions obtained can provide a reference for the energy-saving optimal design of spiral stirring paddles.</div></div>\",\"PeriodicalId\":9929,\"journal\":{\"name\":\"Chemical Engineering and Processing - Process Intensification\",\"volume\":\"205 \",\"pages\":\"Article 110033\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-10-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemical Engineering and Processing - Process Intensification\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0255270124003714\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering and Processing - Process Intensification","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0255270124003714","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
CFD simulation of power characteristics and flow field distribution of different spiral stirring paddles
Stirred reactors are widely used in various industries, and the stirring paddle structure has a significant effect on its power consumption. Therefore, in this study, different spiral stirring paddles were investigated. The effects of the ratio of paddle length to leads (Ls/S) design values and number of blades on the power characteristics and internal flow field of the reactor are discussed in detail, and the correlation equation of power number (Np) concerning Re and Ls/S values is fitted. It was found that the Np of stirring paddles increased and then decreased as the Ls/S value increased, and the effect of the number of blades on the Np gradually reduced. When the Ls/S value is equal to 0.6, the high-speed region of the flow field is the largest and the mixing effect is the best. The conclusions obtained can provide a reference for the energy-saving optimal design of spiral stirring paddles.
期刊介绍：
Chemical Engineering and Processing: Process Intensification is intended for practicing researchers in industry and academia, working in the field of Process Engineering and related to the subject of Process Intensification.Articles published in the Journal demonstrate how novel discoveries, developments and theories in the field of Process Engineering and in particular Process Intensification may be used for analysis and design of innovative equipment and processing methods with substantially improved sustainability, efficiency and environmental performance.
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