Abstract
The author examines the problem of flow of a polymer melt in a cylindrical channel of arbitrary cross section. It is assumed that the polymer is an isotropic viscoelastic medium. All the coefficients of the equation of state obtained for the flow in question are functions of the second invariant of the strain rate tensor only and can be determined experimentally in simple types of flow. A perturbation method is proposed for the solution of specific problems, the Dirichlet problem for Poisson's equation being solved in each perturbation step.
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Mekhanika Polimerov, Vol. 2, No. 3, pp. 421–428, 1966
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Litvinov, V.G. Polymer flow in cylindrical channels. Polymer Mechanics 2, 263–267 (1966). https://doi.org/10.1007/BF00860297
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DOI: https://doi.org/10.1007/BF00860297