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題 名 | Effect of Particle Densities of Binary Mixtures on Segregation in a Vibrated Granular Bed=粒子密度對於振動床內顆粒之分離影響 |
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作 者 | 蕭述三; 俞欣穎; | 書刊名 | 中國機械工程學刊 |
卷 期 | 18:1 1997.02[民86.02] |
頁 次 | 頁95-99 |
分類號 | 446.11 |
關鍵詞 | 粒子密度; 分離效應; 振動; Segregation; Expansion; Vibrated granular bed; Density effect; Granular material; |
語 文 | 英文(English) |
中文摘要 | 本論文以實驗探討不同密度及大小之二種顆粒混合物於振動床內之分離現象。混 合顆粒體在振動床內之分離現象。混合顆粒體在振動床中,於某個範圍的振動加速度下,會 有大顆粒向上升,而小顆粒向下沉的分離現象。顆粒大小為決定分離效果之最重要因素,而 若小粒子之密度較大粒子為小,則分離效應將加強;反之則減弱。分離效應可由粒子空隙重 組及粒子熱擴散理論解釋之。 |
英文摘要 | The segregation phenomena of binary mixtures with size differences and density differences were experimentally studied in a vertical vibrated granular bed. The larger particles tend to move upwards in the shaker in a certain range of vibrational accelerations. The segregation effect could be enhanced if the larger particles have the greater material density than the smaller particles. The segregation coefficient was measured and found to increase with the vibrational acceleration until reaching a maximum and then to decrease with the acceleration. |
本系統中英文摘要資訊取自各篇刊載內容。