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標題: | 二元二格顆粒氣體的振盪、聚集與水平分離 Oscillation, clustering, and horizontal segregation in a two-compartmentalized bi-dispersed granular gas |
作者: | Geng-Hao Guo 郭耿豪 |
指導教授: | 陳國慶 |
關鍵字: | 顆粒氣體,顆粒鐘,顆粒振盪,分離,恢復係數, granular gas,granular clock,granular oscillation,segregation,coefficient of restitution, |
出版年 : | 2008 |
學位: | 碩士 |
摘要: | 顆粒氣體的聚集現象源自於顆粒間的非彈性碰撞,二元顆粒氣體在二格容器中的行為與組成顆粒的種類、數量及輸入能量有關。本文首先以不同顆粒材質、粒徑與輸入能量為實驗變因,分析以上因素對於顆粒聚集數量的影響。接著在單顆不同材質的大顆粒混入後觀察小顆粒聚集數量變化,並於固定輸入能量下觀察顆粒系統運動狀態與大、小顆粒數量的關係。最後,透過水平分離指數的建立利用已知的顆粒組合,針對數量配比、材質的變化分析水平分離現象的特性,以期達到工業上顆粒純化方面的應用。 Clustering phenomenon of granular gas results from inelastic collision between particles. The collision behavior of two-compartmentalized bi-dispersed granular gas depends on the material property and number of particles as well as input energy. In this thesis, we investigate numbers of mono-dispersed particle clustering with different materials, particle size and input energy. Furthermore, small particle clustering mixed with one large particle composed of different materials and the motion state of bi-dispersed granular gas with different number of small/large particles are studied. Finally, by determining index of horizontal segregation, the properties of horizontal segregation are investigated with several parameters, such as the number of small/large particles and different material properties. We expect to extend our experimental results to the industrial application of particle purification. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/40353 |
全文授權: | 有償授權 |
顯示於系所單位: | 應用力學研究所 |
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