Steady and modulated flow of an Ostwald fluid around a rotating disk |
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Authors: | C. Deslouis B. Tribollet |
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Affiliation: | (1) Laboratoire de Physique des Liquides et Électrochemie, C.N.R.S., Université Pierre et Marie Curie, Tour 22, 5e étage, 4 place Jussieu, F-75230 Paris Cedex 05, France |
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Abstract: | The solutions of the continuity equation and the equations of motion of the flow in the vicinity of a rotating disk have been established for an Ostwald fluid under steady-state conditions and in modulated flow around a mean value. Under steady-state conditions, the kinematics of the flow is scarcely dependent on the rheological parameters close to the disk, however, for n < 1 long-range effects have been put forward. For modulated flow, in the high-frequency range, a behaviour very different from that observed for a Newtonian fluid was found. In the low-frequency range an asymptotic solution has been proposed which is of special interest in mass transfer problems.Presented at the Second Conference of European Rheologists, Prague, June 17–20, 1986 |
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Keywords: | Rotating disc modulated flow asymptotic solution Ostwald fluid |
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