A “constrained-chain” network model for viscoelastic fluids |
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Authors: | Chan T W Macdonald I F |
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Institution: | 1. Department of Chemical Engineering, University of Waterloo, N2L 3G1, Waterloo, Ontario, Canada
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Abstract: | A specific case of the general “constrained-chain” strain-dependent integral viscoelastic model is evaluated with steady simple shear data, stress growth and relaxation data, and steady elongational viscosity data. The model is qualitatively correct and quantitatively reasonable in its predictions and, on balance, compares favourably with strain-dependent, strain-rate-dependent, and stress-dependent models from the current literature. Specific model comparisons are made to demonstrate the effect of the “constrained-chain” or finite extensibility feature of the model. |
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