This study compares the film thickness, lubricant temperature, and traction curves of two groups commonly used constitutive models for lubricants in thermo-elastohydrodynamic lubrication (TEHL) modelling. The first group consists Tait equation state, Doolittle Newtonian viscosity model, Carreau shear thinning model. second includes Dowson Roelands–Houpert Eyring simulations were conducted using...

We considered a stagnation point of Non-Newtonian Fluid with Phase Flow Model over stretching surface slip conditions. Two types the nanoparticle used, namely Cu and 〖Al〗_2 O_3 base fluid H_2 O. Acceptable to theoretical study, mathematical model has been constructed through flow assumptions. Partial differential equations are made by applying boundary layer approximations on momentum energy eq...

Blood flow dynamics under physiologically realistic pulsatile conditions plays an important role in the growth, rupture, and surgical treatment of intracranial aneurysms. The temporal and spatial variations of wall pressure and wall shear stress in the aneurysm are hypothesized to be correlated with its continuous expansion and eventual rupture. In addition, the assessment of the velocity field...

Abstract—The main purpose of this study is to show differences between the numerical solution of the flow through the artificial heart valve using Newtonian or non-Newtonian fluid. The simulation was carried out by a commercial computational fluid dynamics (CFD) package based on finite-volume method. An aortic bileaflet heart valve (Sorin Bicarbon) was used as a pattern for model of real heart ...

The impact of buoyancy on axisymmetric radiative Powell-Exring fluid flow towards a radially stretched surface is examined. To analyze the heat and mass transfer characteristics, thermal radiation, joule heating chemical reactions are incorporated to flow. equations governing obtained with help boundary layer approximation. modeled coupled PDE system transfigured as ODE by exerting adequate sim...

The growth rate of fingers of a Newtonian fluid can be modeled by a power law dependence on time. In this experiment, we examine whether the model can be adapted to describe a fluid with changing viscosity. We provide two possible interpretations. For PVA and a PVA/glycerol solution, we show that by assuming a constant exponent, the changing behavior of the fluid can be captured by a coefficien...