Pulsatile Flow of Two-Fluid Nonlinear Models for Blood Flow through Catheterized Arteries: A Comparative Study

Figure 7

Variation of wall shear stress in a time cycle for different fluid models with $R_1=0.95\text{,}$$A=k={\alpha }_N=0.5$ and $\theta =0.05$. It is observed that the wall shear stress increases when the time parameter t increases from 0° to 90° and then it decreases as the time t increases from 90° to 270° and then it increases when the time t increases from 270° to 360°. For a given set of values of the parameters, the wall shear stress of the two-fluid models are marginally lower than those of the single-fluid models and the wall shear stress of the two-fluid H-B model is marginally lower than that of the two-fluid Casson model.