In this study, we show the importance of extensional rheology, in addition to the shear rheology, in the choice of blood analog solutions intended to be used in vitro for mimicking the microcirculatory system. For this purpose, we compare the flow of a Newtonian fluid and two well-established viscoelastic blood analog polymer solutions through microfluidic channels containing both hyperbolic an...

In this study the thermal conductivity and the volumetric heat capacity of non-Newtonian fluids are investigated. These fluids find many applications in chemical, medical and food industries. They mostly have viscoelastic behavior and generally differ from Newtonian fluids. Two non-Newtonian fluids, solutions of xanthan and carboxy methyl cellulose in water with various concentrations have bee...

Abstract Microswimmer suspensions in Newtonian fluids exhibit unusual macroscale properties, such as a superfluidic behavior, which can be harnessed to perform work at microscopic scales. Since most biological are non-Newtonian, here we study the rheology of microswimmer suspension weakly viscoelastic shear flow. At individual level, find that stresses generated by activity substantially modify...

Magnetically-actuated helical microrobots can propel themselves in fluids and tissues-like mediums with a wide range of Reynolds numbers (Re). The properties physiological input parameters vary time space have direct influence on their locomotion along prescribed paths. Therefore, understanding the response to variations rheological become increasingly important translate them into vivo applica...

For achieving early intervention treatment to help patients delay or avoid joint replacement surgery, a personalized scaffold should be designed coupling the effects of mechanical, fluid chemical, and biological factors on tissue regeneration, which results in time- cost-consuming trial-and-error analyses investigate vivo test related experimental tests. To optimize mechanical material properti...

Love waves propagation in a viscoelastic waveguide loaded on its surface with fluids of finite thickness is investigated this paper. The Maxwell and Kelvin-Voigt constitutive equations are employed order to describe the fluid viscoelasticity. By solving motion different media (viscoelastic fluid, elastic substrate) imposing suitable boundary conditions, an accurate simple generalized complex di...

We investigate the phenomenon of drag reduction in a viscoelastic fluid model of dilute polymer solutions. By means of direct numerical simulations of the three-dimensional turbulent Kolmogorov flow we show that drag reduction takes place above a critical Reynolds number Re(c). An explicit expression for the dependence of Re(c) on polymer elasticity and diffusivity is derived. The values of the...

We investigate the effects of helical swimmer shape (i.e., pitch angle and tail thickness) on swimming dynamics in a constant viscosity viscoelastic (Boger) fluid via combination particle tracking velocimetry, image velocimetry 3D simulations FENE-P model. The printed is actuated magnetic field using custom-built rotating Helmholtz coil. Our results indicate that increasing thickness enhances n...

Understanding of viscoelastic drop impact on porous solid surfaces emerges as the essential physics for broad industrial and biological systems. However, there have been few studies concerning post-drop transition considering rheological properties dynamics. Here, we report post-impact dynamics drops mesh using experimental theoretical analyses. Five concentrations highly viscous polymer soluti...