By comparing the results of calculation of power-law fluid flow in a slit with the Ellis fluid flow, the inaccuracy of the power-law model is shown as much in describing the velocity profile as in determining the non-Newtonian fluid flow rate. Moreover, the error of the power-law model in the description of temperature distribution in the case of dissipative heating of non-Newtonian fluid over a stabilized segment is shown. The boundary condition of first kind was used.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 90, No. 5, pp. 1275–1281, September–October, 2017.
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Shapovalov, V.M. On the Applicability of the Ostwald–De Waele Model in Solving Applied Problems. J Eng Phys Thermophy 90, 1213–1218 (2017). https://doi.org/10.1007/s10891-017-1676-9
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DOI: https://doi.org/10.1007/s10891-017-1676-9