Numerical simulation using the methods of characteristics in a horizonal pipeline, the pressure drop in inclined pipeline, and the long distance plug-flow pneumatic conveying are reviewed.
此外评述了用特征线方法进行水平管的数值模拟，倾斜管的压力降计算和长距离的栓流气力输送。
3
All investigators in mass transfer assumed plugflow of gas in packed beds.