Applying Rotating Viscometer with Theoretical Development to Calibrate Rheological Parameters

• Main Authors: Che-Wei Chang, 張哲維
• Other Authors: Ko-Fei Liu
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/85238160260505615024

碩士 === 國立臺灣大學 === 土木工程學研究所 === 96 === 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, we use artificial homogeneous materials to verify if the formulas we develop are usable. With the formulas and the experiment results, we can calibrate the rheological parameters for both models.