The peristaltic motion of a non-Newtonian fluid represented by the constitutive equation for a second-order fluid was studied for the case of a planar channel with harmonically undulating extensible walls. A perturbation series for the parameter δ (δ ≡ half-width of channel/wave length) obtained explicit terms of 0(δ2), 0(δ2Re2) and 0(λ1Reδ2) respectively representing curvature, inertia and the non-Newtonian character of the fluid. Numerical computations were performed and compared to the perturbation analysis in order to determine the range of validity of the terms.
|Original language||English (US)|
|Number of pages||14|
|State||Published - May 1991|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics