Analytical and numerical investigation of nanoparticle effect on peristaltic fluid flow in drug delivery systems

In this paper the peristaltic flow of nanofluids in drug delivery systems is studied analytically and numerically. The flow is considered under low Reynolds number with long wavelength approximation. Least squares method (LSM), Galerkin method (GM) and fourth-order Runge-Kutta numerical method (NUM) are used to solve the present problem. The results are presented to study temperature, velocity, nanoparticle fraction field and pressure gradient. The effects of some physical parameters such as Brownian motion parameter, thermophoresis parameter, thermal Grashof number and basic-density Grashof number on non-dimensional velocity, nanoparticle fraction distribution and temperature profiles are considered. Early results implied that increasing thermal Grashof number reduces the axial velocity profile, while increasing species Grashof number has conversed treatment.