Leung, Chung Yin = 聚合物濃度對湍流減阻的影響 / 梁頌賢. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 106-108). / Abstracts in English and Chinese. / Leung, Chung Yin = Ju he wu nong du dui tuan liu jian zu de ying xiang / Liang Songxian. / Abstract --- p.i / 概要 --- p.iii / Acknowledgements --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- The phenomenon of polymer drag reduction --- p.1 / Chapter 1.2 --- The Phenomenology of drag reduction --- p.9 / Chapter 1.3 --- A recent theory --- p.19 / Chapter 2 --- Review of a recent theory of drag reduction --- p.21 / Chapter 2.1 --- The balance equations --- p.21 / Chapter 2.2 --- Estimating the average terms --- p.26 / Chapter 2.2.1 --- Average terms for flexible polymers --- p.27 / Chapter 2.2.2 --- Average terms for rodlike polymers --- p.32 / Chapter 2.3 --- Solving the balance equations --- p.34 / Chapter 3 --- Behavior near the maximum drag reduction asymptote --- p.42 / Chapter 4 --- Reduction of drag at small concentrations --- p.57 / Chapter 5 --- Velocity profiles and friction factor relations --- p.61 / Chapter 5.1 --- Newtonian flow without polymer --- p.61 / Chapter 5.2 --- Flow at high polymer concentration --- p.63 / Chapter 5.3 --- Flow at intermediate concentration --- p.68 / Chapter 6 --- The Reynolds stress profile --- p.88 / Chapter 7 --- Percentage drag reduction --- p.95 / Chapter 8 --- Conclusion and future work --- p.104 / Bibliography --- p.106