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Further remarks on numerical investigation on gas displacement of a shear-thinning liquid and a visco-plastic material in capillary tubes. (English) Zbl 1274.76071
From the summary: In this note, we present some results concerning the gas displacement of power-law liquids and visco-plastic Papanastasiou’s materials. Specifically, we present: the fraction of mass attached to the wall for a viscosity-thickening power-law fluid, different transition patterns between by pass and full-recirculating flow regimes, expressions for the critical fraction of residual mass as a function of the rheological parameter of interest, and fields of yielded and unyielded zones for the visco-plastic material.

76A05 Non-Newtonian fluids
76T10 Liquid-gas two-phase flows, bubbly flows
Full Text: DOI Link
[1] Sousa, D.; Soares, E.; Queiroz, R.; Thompson, R.: Numerical investigation on gas-displacement of a shear-thinning liquid and a visco-plastic material in capillary tubes, J. non-Newtonian fluid mech. 144, 149-159 (2007) · Zbl 1196.76019
[2] Soares, E.; Thompson, R.: Flow regimes for the immiscible liquid – liquid displacement in capillary tubes with complete wetting of the displaced liquid, J. fluid mech. 641, 63-84 (2009) · Zbl 1183.76698
[3] Taylor, G.: Deposition of a viscous uid on the wall of a tube, J. fluid mech. 10, 161-165 (1961) · Zbl 0091.42203
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