Experimental study of two-dimensional peristaltic flows. (Pressure-flow characteristics in an asymmetric two-dimensional channel flow).
Shin TAKABATAKE, Kyozo AYUKAWA, FUKUTOSHI WATANABE · TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B · 1989
Peristaltic pumping in an symmetric two-dimensional channel with one fixed wall and one moving wall is investigated experimentally for a wide range of amplitude ratio, and for Reynolds numbers ranging in order from unity to 103. Measurements of the mean pressure rise and of the mean flow are carried out, and the interdependent relations between them describing the primary properties of the pumping performance are discussed. It is found that for zero mean flow, the pressure rise is independent of Re for a small Re, while it increases proportionally to Re1/2 for a large Re. However, the relations between the pressure rise and the mean flow are approximately linear for large Reynolds numbers as well as for small Reynolds numbers.