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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 劉格非(Ko-Fei Liu) | |
dc.contributor.author | Che-Wei Chang | en |
dc.contributor.author | 張哲維 | zh_TW |
dc.date.accessioned | 2021-06-15T00:43:48Z | - |
dc.date.available | 2008-09-02 | |
dc.date.copyright | 2008-09-02 | |
dc.date.issued | 2008 | |
dc.date.submitted | 2008-08-28 | |
dc.identifier.citation | 參考文獻
1. Bagnold, R. A.(1954)“Experiments on a Gravity-Free Dispersion of Large Solid Spheres in a Newtonian Fluid under Shear.” Proceedings of the Royal Society of London, Vol. 225, 49-63. 2. Chen, C. L.(1988)“Generalized Viscoplastic Modeling of Debris Flow.” Journal of Hydraulic Engineering, ASCE, Vol. 114.3, 237-258. 3. Chen, C. L. and C. H. Ling(1996)“Granular-Flow Rheology: Role of Shear-Rate Numbers in Transition Regime.” Journal of Engineering Mechanics, Vol. 122.5, 469-480. 4. Coussot, P. and J. M. Piau(1994)“On the Behavior of Fine Mud Suspensions.” Rheologica Acta, Vol. 33, 175-184. 5. Govier, G. W. et al.(1957) “The Properties of Water Suspension of Finely Subdivided Magnetite, Galena and Ferrosilicon.” Trans. Can. Inst. Mining and Met, Vol. 60, 147-154. 6. GDR MiDi(2004)“On Dense Granular Flow.” The European Physical Journal E, Vol. 14, 341-365. 7. Herschel, W. H. and R. Bulkley(1926)Proceedings of ASTM, Part II, Vol. 26, 621-629. 8. Jan, C. D. and H. W. Shen “Review Dynamic Modeling of Debris Flows.” Proceedings of the International Workshop on Debris Flows, IAHR, Kagoshima, Japan, 33-42. 9. Julien, P. Y. and Y. Lan(1991)“Rheology of Hyperconcentrations.” Journal of Hydraulic Engineering, ASCE, Vol. 117.3, 346-353. 10. Gray, J. M. N. T.(2001)“Granular Flow in Partially Filled Slowly Rotating Drums.” Journal of Fluid Mechanics, Vol. 441, 1-29. 11. Major, J. J. and T. C. Pierson(1992)“Debris Flow Rheology: Experimental Analysis of Fine-Grained Slurries.” Water Resources Research, Vol. 28.3, 841-857. 12. O’ Brien, J. S. and P. Y. Julien (1988)“Laboratory Analysis of Mudflow Properties.” Journal of Hydraulic Engineering, ASCE, Vol. 114.8, 877-487. 13. Longo, S. and A. Lamberti(2002)“Grain Shear Flow in a Rotating Drum.” Experiments in Fluids, Vol. 32, 313-325. 14. Savage, S. B. and S. McKeown(1983)“Shear Stress Developed during Rapid Shear of Concentrated Suspension of Large Spherical Particles between Concentric Cylinders.” Journal of Fluid Mechanics, Vol. 127, 453-472. 15. Tai, Y. C. et al.(2000)“Steady Motion of a Finite Granular Mass in a Rotating Drum.” The Chinese Journal of Mechanics, Vol. 16, No.2, 67 –72. 16. 詹錢登、陳晉祺(1997),「應用直立旋轉式水槽研究土石流體之流動現象」,中華水土保持學報,第28卷第2期,第157-164頁。 17. 劉格非、黃名村(2003),「土石流災害範圍之數值模擬及利用微波偵測土石流之研究」,國立台灣大學土木工程研究所博士論文。 18. 劉格非、張鈞棠(2004),「使用圓盤儀求取顆粒流流變特性之初步研究」,國立台灣大學土木工程研究所碩士論文。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/42047 | - |
dc.description.abstract | 本研究以理論配合實驗求取不同材料的流變參數特性。理論方面,由賓漢流體與Julien and Lan兩種不同的本構關係模式出發,將流變儀內的流體分為強剪層與弱剪層。利用分離計算的概念,分別推得其控制方程式與邊界條件。再藉由正規化與尺度分析,求解兩層流體其第零階的各項未知數-速度剖面、剪應力分布等,並推導出這兩種不同本構模式下個別的流變參數率定公式,以提供日後流變實驗率定之用。
實驗方面,本研究以人工均質材料為基礎,選定兩種顆粒間作用力與運動型態差異較大的三角形與圓珠型細磨石,並以不同的材料用量與儀器轉速進行多組實驗。再由實驗數據配合理論發展之流變參數率定公式,即可檢定出兩種實驗材料在不同本構模式下的流變參數值。利用檢定結果代回推求速度剖面、剪應力分布及強剪層厚度等未知數,可發現流速剖面與實際不符;此外,強剪層厚度數據亦出現不合理的負值。則由此得知,理論發展所採用的賓漢流體與Julien and Lan兩種本構模式並不適用於本研究所進行的顆粒材料流變實驗。 | zh_TW |
dc.description.abstract | In this study, we combine theory and experiment to calibrate the rheological properties of different materials. Theoretically, we start from two different constitutive models-Bingham and Julien & Lan. We separate the fluid into two layers-shear layer and plug layer, and derive the governing equations and boundary conditions, respectively. Through normalization, we can analyze each equation and solve the leading order velocity and shear stress. For both models, we derive formulas for calibrating rheological properties in rotating viscometer.
In experiments, the artificial homogeneous materials are used as a foundation. First, we choose two different flowing type materials-sphere and triangular prism, and then classify the experiments based on different quantity of materials as well as the rotating speed. Since the formulas and the experiment results are acquired, the rheological parameters for both models could be calibrated. With these parameters, we can obtain the unknowns in governing equations-velocity profile, shear stress distribution and the thickness of shear layer. And the velocity profile does not conform to the real state is also found. Besides, there are some data of the shear layer thickness are negative which is wrong. Therefore, we can say the models we adopt- both Bingham and Julien & Lan are not suitable for the granular rheological experiment in this study. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T00:43:48Z (GMT). No. of bitstreams: 1 ntu-97-R95521304-1.pdf: 2693548 bytes, checksum: 5ecd8dceaf5d509d4ed228995550ef56 (MD5) Previous issue date: 2008 | en |
dc.description.tableofcontents | 目錄
誌謝 一 摘要 三 Abstract 四 目錄 五 圖目錄 八 表目錄 一一 第一章 緒論 1 1.1 前言 1 1.2 研究背景 2 1.2.1. 非牛頓流體及本構關係的研究 2 1.2.2. 流變儀的相關研究 5 1.3 研究目的與方法 7 1.4 研究架構與流程 7 第二章 理論基礎 11 2.1 問題描述 11 2.1.1 垂直旋轉式流變儀(Rotating Viscometer) 12 2.1.2 座標系統、條件與假設 14 2.2 本構關係模式(Constitutive Model) 16 2.2.1 賓漢流體(Bingham Fluid) 16 2.2.2 Julien and Lan 20 2.3 速度剖面(Velocity Profile) 21 2.4 控制方程式與邊界條件 25 2.4.1 控制方程式 25 2.4.2 邊界條件 31 2.4.2.1 自由表面 31 2.4.2.2 弱剪層與強剪層交界面 34 2.4.2.3 底床 35 第三章 正規化與解方程式 37 3.1 正規化與尺度分析 37 3.1.1 特徵參數與物理尺度 38 3.1.2 本構關係式 46 3.1.2.1 賓漢流體 46 3.1.2.2 Julien and Lan 51 3.1.3 控制方程式 54 3.1.3.1 弱剪層 55 3.1.3.2 強剪層 58 3.1.3.3 流量守恆方程式 61 3.1.4 邊界條件 61 3.1.4.1 自由表面 61 3.1.4.2 弱剪層與強剪層交界面 65 3.1.4.3 底床 67 3.2 解第零階方程式 68 3.2.1 控制方程式 69 3.2.2 邊界條件 70 3.2.3 第零階解 72 3.2.3.1 賓漢流體 73 3.2.3.2 Julien and Lan 80 第四章 室內實驗 91 4.1 實驗設備 91 4.2 實驗材料 93 4.3 實驗設計 94 4.4 實驗內容與步驟 97 4.5 理論基礎 106 4.6 實驗誤差 107 4.7 實驗組別 109 第五章 結果分析與驗證 115 5.1 賓漢流體 115 5.1.1 分析方法 115 5.1.2 分析結果 118 5.2 Julien and Lan 124 5.2.1 分析方法 124 5.2.2 分析結果 127 5.3 影像分析 128 第六章 結論與建議 135 6.1 結論 135 6.2 建議 135 參考文獻 137 附錄 141 | |
dc.language.iso | zh-TW | |
dc.title | 應用垂直旋轉式流變儀搭配理論發展求取流變參數 | zh_TW |
dc.title | Applying Rotating Viscometer with Theoretical Development to Calibrate Rheological Parameters | en |
dc.type | Thesis | |
dc.date.schoolyear | 96-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 黃良雄,卡艾瑋,詹錢登,周憲德 | |
dc.subject.keyword | 垂直旋轉式流變儀,流變參數,賓漢流體,Julien and Lan,本構關係式, | zh_TW |
dc.subject.keyword | Rotating viscometer,Rheological parameter,Bingham,Julien and Lan,Constitutive model, | en |
dc.relation.page | 168 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2008-08-28 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 土木工程學研究所 | zh_TW |
顯示於系所單位: | 土木工程學系 |
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