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Phys. Fluids 29, 3537 (1986); http://dx.doi.org/10.1063/1.865831 (12 pages)
The effect of surface tension on the shape of a Hele–Shaw cell bubble
(Received 7 April 1986; accepted 30 June 1986)
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Add to FacebookNumerical and asymptotic solutions are found for the steady motion of a symmetrical bubble through a parallel‐sided channel in a Hele–Shaw cell containing a viscous liquid. The degeneracy of the Taylor–Saffman zero surface‐tension solution is shown to be removed by the effect of surface tension. An apparent contradiction between numerics and perturbation arises here as it does for the finger. This contradiction is resolved analytically for small bubbles and is shown to be the result of exponentially small terms. Numerical results suggest that this is true for bubbles of arbitrary size. The limit of infinite surface tension is also analyzed.
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0031-9171 (print)
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J. M. Vanden-Broeck, Phys. Fluids 26, 2033 (1983PFLDAS000026000008002033000001).
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