1407 不織布を用いた円管内流れの流体抵抗低減に関する研究

概要

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Although the amount of nonwoven fabric produced has been increasing for the last fifty years, but the ratio of the amount of nonwoven fabric used to the total amount of fiber used does not exceed 20%. It is important to consider an application of nonwoven fabric to new industrial products. The purpose of this study is to investigate the effect on the drag reduction in a circular pipe flow by means of the inside wall coated with the nonwoven fabric. Three types of nonwoven fabric used in this experiment are an electret one made of polypropylene. The diameter of the fiber is approximately 4 to 30μm, the fiber distribution of these types is a random laying. The pressure drop was measured for various Reynolds numbers. It was proven that the inside-wall coated with the nonwoven fabric has the ability to reduce the drag in the circular pipe flow.
社団法人日本機械学会の論文