The accuracy of the Ostwald–de Waele model in solving the problem of roll flow has been assessed by comparing with the "reference" solution for an Ellis fluid. As a result of the analysis, it has been shown that the model based on a power-law equation leads to substantial distortions of the flow pattern.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 91, No. 2, pp. 428–433, March–April, 2018.
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Shapovalov, V.M. On Application of the Ostwald–de Waele Model to Description of Non-Newtonian Fluid Flow in the Nip of Counter-Rotating Rolls. J Eng Phys Thermophy 91, 405–410 (2018). https://doi.org/10.1007/s10891-018-1761-8
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DOI: https://doi.org/10.1007/s10891-018-1761-8