• 作者： Lee, D.J.; Chen, G.W.; Hsu, Y.H.
• 中文摘要： 本文探討毛細吸引裝置測試中常用假設之正確性。實驗結果發現在圓柱形或矩形之毛細吸引裝置中,其溼潤前緣可視為一橢圓或一直線,而矩形測試中之流場亦可視為一維流動。文中並以理論推導粒子沈降對毛細吸引時間及所測濾餅比阻之影響,計算結果顯示在大部分應用範圍內,粒子沈降效應可忽略。文末並討論上下板及中央圓柱管重量對實驗結果的影響。
• 英文摘要： Several usually made assumptions in a capillary suction apparatus test are verified in this work. Within a statistical confidence level, the wet front shape can be taken as an ellipse in a cylindrical capillary suction apparatus (CCSA) test or a straight line in a rectangular capillary suction apparatus (RCSA) test. It is also noted that, with the help of the results with variable-width filter papers, the fluid flow field in an RCSA test is shown to be unidimensional. The particle sedimentation effects on capillary suction time (CST) in a CCSA or RCSA test is evaluated theoretically, and the result indicates that the effects should be insignificant in most cases. The CST is also little affected by the top and the bottom plates, or when the inner cylinder loading is less than 9,000Pa.
• 中文關鍵字： 前緣形狀; 沈降; 槽負載; 板效應; 毛細吸引
• 英文關鍵字： Front Shape; Sedimentation; Cell Loading; Plate Effect; Capillary Suction