0301 エバネッセント光による希薄高分子水溶液の壁面極近傍流動特性の評価(OS3-1 流れの抵抗低減,オーガナイズドセッション)

概要

論文の詳細を見る
The velocity profile of dilute polymer solutions and a distilled water near the wall surface in a microchannel was clarified using a particle tracking velocimetry technique combined with evanescent wave illumination. Fluorescent particles with the diameter of 20 nm and 100 nm were used as tracer particles. The test polymers are polyethylene-oxide (SE-5 and SE-30) solution at 5 ppm. The results obtained for the velocity profile of a distilled water using fluorescent particles with a diameter of 20 nm was found that the resolution of the velocity profile near the wall surface was drastically improved from the conventional result. On the other hand, the velocity profile of dilute polymer solutions decreased significantly compared with that of distilled water, and the gradient of the velocity profile decreases with the increase of the molecular weight.
2009-11-06