Effect of the rotation, magnetic field and initial stress on peristaltic motion of micropolar fluid. (English) Zbl 1293.76163
Summary: In this work, the effect of magnetic field, rotation and initial stress on peristaltic motion of micropolar fluid in a circular cylindrical flexible tube with viscoelastic or elastic wall properties has been considered. Runge-Kutta technique are used. Runge-Kutta method is developed to solve the governing equations of motion resulting from a perturbation technique for small values of amplitude ratio. The time mean axial velocity profiles are presented for the case of free pumping and analyzed to observe the influence of wall properties, magnetic field, rotation and initial stress for various values of micropolar fluid parameters. In the case of viscoelastic wall, the effect of viscous damping on mean flow reversal at the boundary is seen. The numerical results of the time mean velocity profile are discussed in detail for homogeneous fluid under the effect of wall properties, magnetic field, initial stress and rotation for different cases by figures. The results indicate that the effect of wall properties, rotation, initial stress and magnetic field are very pronounced. Numerical results are given and illustrated graphically.
MSC:
| 76W05 | Magnetohydrodynamics and electrohydrodynamics |
| 76U05 | General theory of rotating fluids |
| 76A05 | Non-Newtonian fluids |
Keywords:
peristaltic motion; wall properties; micropolar fluid; perturbation technique; velocity profiles; rotation; magnetic field; initial stressReferences:
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