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研究生: 歐明源
Ming-Yu Yo
論文名稱: 水平振動床之流場分析
指導教授: 蕭述三
Shu-San Hsiau
口試委員:
學位類別: 碩士
Master
系所名稱: 工學院 - 機械工程學系
Department of Mechanical Engineering
畢業學年度: 88
語文別: 中文
論文頁數: 86
中文關鍵詞: 水平振動床
外文關鍵詞: Horizontal Shaking
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  • 垂直振動粒子流場分離、混合、邊壁迴流、拱柱…等現象有較多的討論,水平振動則較少討論,水平振動有別於垂直振動,其粒子受水平振動後所發生的現象值得我們深入的研究。在實驗中分為三個方向討論(1)利用粒子在水平振動不同相位之變化來細看粒子隨振動床移動而變化的現象。(2)改變振動加速度對粒子擾動分佈及迴流現象的影響。(3)改變不同邊壁角度對迴流現象的影響。


    目錄 摘要……………………………………………………………………. I 附表目錄………………………………………………………………. III 附圖目錄………………………………………………………………. VI 符號說明……………………………………………………………… VIII 第一章簡介 1.1 粒子流簡介……………………………………………………. 1 1.2 粒子流與一般流體之異同……………………………………. 1 1.3 振動床之應用…………………………………………………. 3 1.4 研究方向與架構………………………………………………. 6 第二章實驗方法 2.1 實驗設備……………………………………………………… 7 2.2 實驗原理與方法…………………………………..………… 12 2.2.1 實驗參數原理…………………………………………… 12 2.2.2 影像處理的應用………………………………………… 13 2.2.3 連結體標示簡示…………………………………….……. 16 2.2.4 程式流程及實驗計算原理……………………………… 17 2.3 實驗步驟…………………………………………………….. 20 第三章結果與討論 3.1 粒子在水平振動不同相位之變化………………………….. 24 3.2 不同振動加速度對粒子擾動分佈及迴流現象之影響……… 31 3.3不同邊壁角度對迴流現象之影響……………………………. 35 第四章結論…………………………………………………………. 40 參考文獻………………………………………………….……….. 42

    Campbell, C. S. and Brennen, C. E., 1985b,“Chute flows of granular material: some computer simulations,”J. Appl. Mech, Vol. 52, pp. 72-178.
    Douady, S., Fauve, S., and Laroche, C., 1989,“Subharmonic instabilities and defect in a granular layer under vertical vibrations,”Europhys. Lett., Vol. 8, No. 7, pp. 621-627.
    Grossman, E. L., 1997,“Effects of container geometry on granular convection”Phys. Rev. E., Vol. 56, No. 3, pp. 3290-3299.
    Hsiau, S. S. and Pan, S. J., 1998,“Motion state transitions in a vibrated granular bed,”Powder Tech., Vol. 96, pp.219-226.
    Hsiau, S. S., Wu, M. H. and Chen, C. H., 1998,“Arching phenomena in a vibrated granular bed,”Powder Tech., Vol. 99, pp. 185-193
    Knight, J. B., Ehrichs, E. E., Kuperman, V. Y., Flint, Jaeger, H. M., and Nagel, S. R., 1996,“An experimental study of granular convection,”Phys. Rev. E., Vol. 54, pp. 5726-5738.
    Knight, J. B., 1997,“External boundaries and internal shear bands in granular convection,”Phys. Rev. E., Vol. 55, No. 5, pp. 6016-6023.
    Kurt Liffman, Guy Metcalfe, and Paul Cleary,”Granular Convection and Transport due to Horizontal Shaking “Phys. Rev. Letters., Vol. 79, pp. 4574-4576.
    Pak H., and Behringer R.,1993., “Surface Waves in Vertically Vibrated Granular Materials,” Submitted to Phys. Rev. Lett.
    Reynolds, Osborne, 1885, “On the Dilatancy of Media Composed of Rigid Particles in Contact ,” Phil. Mag., Vol. 20.
    Reynolds, Osborne, 1887, “Experiments Showing Dilutency , A Property of Granular Materials Possibly Connected with
    Gravitation,” Proc. Roy. Inst Great Brit., Vol.11, pp. 354
    Wassgren, C. R, Brennen, C. E, and Hunt, M. L., 1996,“Vertical vibration of a deep beds of granular material in a contiainer,”J. Appl. Mech.,Vol.63, pp.712-719.

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