Micro PIV measurement of slip flow on a hydrogel surface

K. Kikuchi, O. Mochizuki

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Slip flow on a hydrogel surface was investigated in order to clarify the effect of drag reduction on the aqueous surface of living things. Thin-film flow along the hydrogel surface was measured by using a micro PIV (particle image velocimetry) system for comparison with theoretical velocity distribution which satisfied the non-slip condition on a solid surface. The slip flow on the hydrogel was found to be related to the degree of swelling and molecular weight of the hydrogel materials. This shows the possibility of a reduction in wall shear stress as a result of the decrease in the velocity gradient near a wall surface.

Original languageEnglish
Article number065702
JournalMeasurement Science and Technology
Volume25
Issue number6
DOIs
Publication statusPublished - 2014 Jun
Externally publishedYes

Keywords

  • drag reduction
  • frictional drag
  • hydrogel
  • micro PIV (particle image velocimetry)

ASJC Scopus subject areas

  • Instrumentation
  • Engineering (miscellaneous)
  • Applied Mathematics

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