ON THE APPLICABILITY OF THE OSTWALD–DE WAELE MODEL IN SOLVING APPLIED PROBLEMS

By comparing the results of calculation of power-law fl uid fl ow in a slit with the Ellis fl uid fl ow, the inaccuracy of the power-law model is shown as much in describing the velocity profi le as in determining the non-Newtonian fl uid 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 fl uid over a stabilized segment is shown. The boundary condition of fi rst kind was used.
   
Author:  V. M. Shapovalov
Keywords:  fl ow rate, shear stress, pressure, rheological model, temperature, velocity
Page:  1213