- 學位論文
摩擦力對非穏態滑道固液流之影響
Friction effect on the dynamics of unsteady two-phase solid-liquid flow down a flume
若您是本文的作者，可授權文章由華藝線上圖書館中協助推廣。
摘要
本論文使用一個含有可以迅速開起的閘門之滑道和新穎的數位影像擷取裝置來觀察高濃度固液二相流之流場分析。該水槽含有一個放置空間來控制初始狀態，並且可輕易觀測流場的流動狀態。在流體側邊與表面的顆粒，可以用高速攝影機來拍攝其行為。並且用影像處理方法找出我們所需要的資訊。包含速度分布，固體密度等等。本論文將使用此方法探討摩擦力與顆粒流之間的關係。
關鍵字
顆粒流並列摘要
A laboratory-scale flume has been developed and integrated with a high-speed image acquisition system to investigate the unsteady bulk motion of a dry and a wet granular mixture. Monatomic Polyoxymethylene (POM) spheres and water are employed to prepare the experimental materials. An image analysis routine has been developed to achieve efficient tracking for the individual particles within a moving bulk. Special efforts are made to examine how the coexisting liquid modifies the flow properties of a wet mixture from that exhibits by the dry bulk. The basal friction and the corresponding friction coefficients, that are typically difficult to measure, are estimated using image analysis and control volume analysis.
並列關鍵字
granular參考文獻
Aradian A., Raphaël É. and Gennes P.G.D., “Surface flows of granular materials: a short introduction to some recent models” Comptes rendus Physique (2002) 3: 187–196
Armanini A., Capart H., Fraccarollom. and Larcher L., “Rheological stratification in experimental free-surface flows of granular–liquid mixtures” Journal of Fluid Mechanics (2005), 532: 269–319.
Ahn H., Brennen C.E. and Sabersky R.H., “Analysis of the Fully Developed Chute Flow of Granular Materials” Applied Mechanics, (1992) 59:109-119
Azanza E., Chevoir F.O. and Moucheront P., “Experimental study of collisional granular flows down an inclined plane” Journal of Fluid Mechanics (1999) 400: 199-277
Ancey C., “Dry granular flows down an inclined channel: Experimental investigations on the frictional-collisional regime” Physical Review E, (2001) 65: 011304
延伸閱讀
- 張嘉倫、楊程專、蔡瑋玲、李俊毅（2001）。摩擦配向對垂直配向模式ECB彩色液晶顯示元件光電特性之影響。材料科學與工程，33(4)，233-238。https://doi.org/10.6409/JMSE.200112.0233
- Hung, C. Y. (2005). 摩擦係數對於在空氣中做旋轉運動的橢圓球體之影響 [master's thesis, Tatung University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0081-0607200917234336
- 蔡尚芳（2003）。摩擦力做的功與熱力學第一定律。科學教育月刊，(256)，27-32。https://doi.org/10.6216/SEM.200303_(256).0004
- GHOSH, A. K., & CHAKRABORTY, S. P. (2005). ON HEAT TRANSFER TO PULSATILE FLOW OF A TWO-PHASE FLUID. International Journal of Mathematics and Mathematical Sciences, 2005(), 2497-2510-198. https://doi.org/10.1155/IJMMS.2005.2497
- 盧昱彰（2007）。A Study on Solid-Gas Two-Phase Flow in Suspension Bedand Swirling Flow Tube〔博士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2007.02053