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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 李雨(U Lei) | |
dc.contributor.author | Hung-Han Lai | en |
dc.contributor.author | 賴泓翰 | zh_TW |
dc.date.accessioned | 2023-03-19T23:36:17Z | - |
dc.date.copyright | 2022-09-14 | |
dc.date.issued | 2022 | |
dc.date.submitted | 2022-09-12 | |
dc.identifier.citation | 1. Bird, R.B., Transport phenomena. Appl. Mech. Rev., 2002. 55(1): p. R1-R4. 2. Yuan, C., Zhang, Hong-Na,Li, Yu-Ke,Li, Xiao-Bin, Wu, Jian,Li, Feng-Chen., Nonlinear effects of viscoelastic fluid flows and applications in microfluidics: A review. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020. 234(22): p. 4390-4414. 3. Thakur, R., Vial, C., Nigam, K., Nauman, E., & Djelveh, G., Static mixers in the process industries—a review. Chemical engineering research and design, 2003. 81(7): p. 787-826. 4. Helical Static Mixer & Blender Works for Turbulent & Lamiar Flow Processing - ADMIX (admix.com/). Available from: https://www.admix.com/admixer-how-it-works. 5. Lehwald, A., Leschka, S., Thévenin, D., & Zähringer, K. , Experimental investigation of a static mixer for validation of numerical simulations, in Micro and macro mixing. 2010, Springer. p. 227-243. 6. Rafiee, M., Bakalisa, S., Fryer, P. J., & Ingram, A., Study of laminar mixing in kenics static mixer by using Positron Emission Particle Tracking (PEPT). Procedia Food Science, 2011. 1: p. 678-684. 7. Ghanem, A., Lemenand, T., Della Valle, D., & Peerhossaini, H. , Static mixers: Mechanisms, applications, and characterization methods–A review. Chemical engineering research and design, 2014. 92(2): p. 205-228. 8. Lim, V., Hobby, A. M., McCarthy, M. J., & McCarthy, K. L. , Laminar mixing of miscible fluids in a SMX mixer evaluated by magnetic resonance imaging (MRI). Chemical Engineering Science, 2015. 137: p. 1024-1033. 9. Mihailova, O., O'sullivan, D., Ingram, A., & Bakalis, S. , Velocity field characterization of Newtonian and non-Newtonian fluids in SMX mixers using PEPT. Chemical Engineering Research and Design, 2016. 108: p. 126-138. 10. Migliozzi, S., L. Mazzei, and P. Angeli, Viscoelastic flow instabilities in static mixers: Onset and effect on the mixing efficiency. Physics of Fluids, 2021. 33(1): p. 013104. 11. 白翊宏, 靜態混合器內混合現象的數值研究. 台灣大學應用力學研究所學位論文, 2021. 12. COMSOL Multiphysics Reference Manual. 2018; Available from: https://doc.comsol.com/5.4/doc/com.comsol.help.comsol/COSMOL_ReferenceManual.pdf. 13. COMSOLMultiphysics. CFD Module User’s Guide. 2018; Available from: https://doc.comsol.com/5.4/doc/com.comsol.help.cfd/CFDModuleUsersGuide. 14. Singh, M.K., P.D. Anderson, and H.E. Meijer, Understanding and optimizing the SMX static mixer. Macromolecular rapid communications, 2009. 30(4‐5): p. 362-376. 15. Yasuda, K., R. Armstrong, and R. Cohen, Shear flow properties of concentrated solutions of linear and star branched polystyrenes. Rheologica Acta, 1981. 20(2): p. 163-178. 16. Definition Of Typical Mass Diffusion Coefficient. Available from: https://en.wikipedia.org/wiki/Mass_diffusivity. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/86088 | - |
dc.description.abstract | 透過有限元素數值計算軟體COMSOL Multiphysics ,本文使用稀薄質傳法(Transport of Diluted Species)及水平集法(Level Set Method)來模擬SMX與Kenics靜態混合器在層流下的混合現象。就牛頓流體與非牛頓流體的流場與濃度場,經過詳細的定性與定量分析,本文的計算結果均與文獻中實驗結果相符。確認本文所發展之計算程序能作為靜態混合器的參數設計及研發工具;且就不互溶的兩股不同流體(如油與水)亦能進行混合分析。 於上述兩靜態混合器的混合情況,本文對不同擴散係數進行了參數分析以研究擴散與對流的相對效應。另經本文的研究,也獲得以下結論:(1)上述兩種數值計算方法皆能用於評估靜態混合中因複雜幾何結構混合元件所引發之對流效應及混合效果。就所需要計算資源而言,水平集法較稀薄質傳法高出許多;但前者能追蹤待混合之二相流液體介面之變化,能模擬不互溶流體的混合,更能觀察混合的實際物理現象。(2)SMX靜態混合器因其較複雜之幾何結構,其整體混合表現較Kenics 混合器佳。 | zh_TW |
dc.description.abstract | Laminar mixing in SMX and Kenics static mixers was studied numerically using the method of transport of dilute species and level-set method, via the aid of COMSOL Multiphysics finite element software. Numerical results of both velocity and concentration fields of Newtonian and non-Newtonian fluids were examined qualitatively and quantitatively in details, and the validity was checked against experimental results in the literature. Thus, the method and numerical procedures developed in this thesis can be employed for the parametric study and design of static mixers. Furthermore, they can also be employed for studying mixing of immiscible fluids. As for the mixing of SMX and Kenics mixers, we have performed calculations with different mass diffusivities, for understanding the relative importance of convection and diffusion in the phenomenon. We also found: (1) Both the method of transport of dilute species and the level-set method can be employed for studying mixing in static mixers, but the level-set method needs much more intense calculation. However, the level-set method can track the interface between two fluids, and is capable to simulate the mixing of two immiscible fluids; it also provides more physical insight of mixing. (2) Due to the more complicated geometry of mixing element, the SMX mixers perform better mixing than that of the Kenics mixers. | en |
dc.description.provenance | Made available in DSpace on 2023-03-19T23:36:17Z (GMT). No. of bitstreams: 1 U0001-0809202217421000.pdf: 5543696 bytes, checksum: d5d16c33b11e65578a2aea87041e82e8 (MD5) Previous issue date: 2022 | en |
dc.description.tableofcontents | 口試委員審定書 i 誌謝 ii 中文摘要 iii ABSTRACT iv 目錄 v 圖目錄 vii 表目錄 xii 第一章 緒論 1 1.1 簡介 - 流體混合與靜態混合器 1 1.2 文獻回顧 2 1.3 研究動機 6 第二章 理論模型 8 2.1 本文所使用的靜態混合器與基本假設 8 2.1.1 靜態混合器 8 2.1.2 基本假設 12 2.2 流體性質 13 2.3 統御方程式 15 2.3.1 稀薄質傳法 16 2.3.2 水平集法 18 2.4 邊界條件與初始條件 20 2.4.1 稀薄質傳法 21 2.4.2 水平集法 22 2.5 COMSOL Multiphysics 計算軟體及相關計算方法 24 第三章 結果與討論 27 3.1 網格設定 27 3.2 流場模擬 - Mihailova et al. [9]實驗案例之模擬結果 31 3.2.1 定性分析 32 3.2.2 定量分析 36 3.3 混合模擬 - Lim et al. [8] 實驗案例之模擬結果 40 3.3.1 定性分析 40 3.3.2 定量分析 46 3.4 不同擴散係數對混合之影響 49 3.5 油水混合的模擬 - 於兩項靜態混合器之結果比較 51 3.5.1 肯力氏混合器之油水混合結果 52 3.5.2 SMX混合器之油水混合結果 56 第四章 結論與未來展望 60 參考文獻 61 | |
dc.language.iso | zh-TW | |
dc.title | 互溶/不互溶流體於靜態混合器中混合的數值研究 | zh_TW |
dc.title | Numerical study of mixing of miscible/immiscible fluids in static mixers | en |
dc.type | Thesis | |
dc.date.schoolyear | 110-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 田華忠(Hwa-Chong Tien),雷顯宇(Hsien-Yu Lei) | |
dc.subject.keyword | 靜態混合器,層流混合,稀薄質傳法,水平集法,不互溶流體混合, | zh_TW |
dc.subject.keyword | Static mixers,Laminar mixing,Transport of dilute species,Level-set method,Mixing of immiscible fluids, | en |
dc.relation.page | 62 | |
dc.identifier.doi | 10.6342/NTU202203252 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2022-09-13 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
dc.date.embargo-lift | 2022-09-14 | - |
顯示於系所單位: | 應用力學研究所 |
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