volume 34, issue 3, P209-212 1994
DOI: 10.1002/pen.760340306
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Abstract: Abstract Entrance pressure losses for the creeping flow of a power‐law fluid are calculated for an abrupt contraction of ratio 2, 4, 8 and ∞ for both the axisymmetric and planar cases using P2P1 and P +2P1 finite elements. Contrary to some earlier findings in the literature, the entrance pressure loss obtained by using the two different types of finite elements, both of which satisfy the Babus̆ka‐Brezzi condition, are found to converge to the same results. The present results also confirm that the variational…

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