- 學位論文
高濃度賓漢流體在垂直旋轉流變儀的運動及參數檢定
The Motion of Bingham Flow in RotatingViscometer and Rheological Parameters Calibration
摘要
本研究為土石流流變特性之研究，主要目的是針對垂直旋轉式流變儀的實驗，發展出能適用於流變實驗中，材料流動現象的流變參數率定公式．在理論方面，以Bingham and Green(1920)的本構關係式出發，將流變儀內的流體分為強剪層及弱剪層．利用分離計算的方式，分別推得其控制方程式及邊界條件．再藉由正規化及尺度分析，求解及率定公式。在實驗方面，摘錄劉格非、艾昱安(2009)及劉格非、林柏瀚(2012)中實驗部分的重量濃度30 %~50%之部分，最後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Bingham and Green(1920)模式下之流變參數值．並驗證此流變參數率定公式的正確性及可行性，以期能提供往後從事相關流變實驗的研究者參考及使用。
並列摘要
In this study, we research the rheological properties of debris flow. The main topic is to develop the suitable rating formula of flowing phenomenon rheological parameters for rheological experiments. Theoretically, we start from Bingham and Green(1920). 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 rating formula. In experiments, we will use the homogeneous materials basically.We Excerpt the experimental data of weight percentage concentration 30%~50% from Liu and Ai(2009),Liu and Lin(2012).Finally, from the rheological parameter rating formula with the experimental data and the theoretical development, we can calibrate the rheological parameters of Bingham mode. We will verify the correctness and feasibility of the rheological parameter rating formula, to provide future researchers in related rheological experiments and the use of reference.