Impact of radial magnetic field on peristalsis in curved channel with convective boundary conditions

This paper addresses the peristaltic flow in curved channel with combined heat/mass transfer and convective effects. The channel walls are flexible. An imposed magnetic field is applied in radial direction to increase the wave amplitude (used in ECG for synchronization purposes). The pseudoplastic fluid comprising shear-thinning/shear thickening effects has been used in mathematical modeling. Small Reynolds number assumption is employed to neglect inertial effects. Half channel-width to wavelength ratio is small enough for the pressure to be considered uniform over the cross-section. The graphical results obtained are compared with planar channel. Results show the non-symmetric behavior of sundry parameters in contrary to the planar case. Additionally more clear results are seen when the curved channel is approached. •The behavior of curvature parameter k on velocity is not symmetric.•Temperature is decreasing function of Biot number Bi.•Hartman number has similar qualitative effects on both velocity and temperature.•Behavior of concentration is opposite to that of temperature in a qualitative sense.•Bolus size via curvature parameter has opposite effect near the upper and lower channel walls.