ABSTRACT
Some authors have developed experiments to obtain the magnitudes of the coefficients of micropolar fluids. For example, Ebert[200] measured three constants and showed that they can be determined by means of the geometry variation of the measuring apparatus. Fodemski and Morawski[201] subjected water, ethyl alcohol, and nitrobenzene to a rotating electric field to calculate the corresponding spin viscosity and the internal volume torque. Viscometric and thermal measurements were done by Kolpashchikov et al.[202] to obtain two characteristic parameters of micropolar fluids. They also give formulas for the value of the linear proportionality constant of the boundary condition, which relates the spin with the vorticity at the solid boundary. Besides, the micropolar fluids theory is used for experimental capillary penetrant testing by Prokhorenko et al.[203] The micropolar theory has been checked experimentally for fluid behavior in micromachined channels by Papautsky et al.[204] They showed that the micropolar theory predicts experimental data better than the Newtonian one.
