Abstract
Peristaltic motion of a power law fluid in a two-dimensional channel is studied. Assuming that the wavelength of the peristaltic wave is large in comparison to the mean half-width of the channel, a solution for the stream function is obtained as an asymptotic expansion in terms of slope parameter. Expressions for axial pressure gradient and shear stress are derived. The effect of flow behaviour indexn on the streamline pattern and shear stress is studied and the phenomenon of trapping is discussed.
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Radhakrishnamacharya, G. Long wavelength approximation to peristaltic motion of a power law fluid. Rheol Acta 21, 30–35 (1982). https://doi.org/10.1007/BF01520703
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DOI: https://doi.org/10.1007/BF01520703