eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences December 2018 30 12 121 132 http://dx.doi.org/10.22147/jusps-B/301201 1508 article B. RANJITHA 1 M. V. SUBBA REDDY 2 Research Scholar, Department of Mathematics, Rayalaseema University, Kurnool-518002, Andhra Pradesh (India) Professor, Department of CSE, Sri Venkatesa Perumal College of Engineering & Technology, Puttur-517583, Andhra Pradesh (India) <p style="text-align:justify">In this paper, we studied the interaction of heat transfer with peristaltic pumping of a Williamson fluid through a porous medium in a planar channel, under the assumptions of low Reynolds number and long wavelength. The flow is investigated in a wave frame of reference moving with velocity of the wave. The perturbation series in the Weissenberg number (<em>We</em> <img alt="&lt;" src="http://latex.codecogs.com/gif.latex?%3C" />1) was used to obtain explicit forms for velocity field, pressure gradient and friction force per one wavelength. The effects of Weissenberg number We, Darcy number <em>Da</em> and amplitude ratio <img alt="phi" src="http://latex.codecogs.com/gif.latex?%5Cphi" />&nbsp;on the pumping characteristics and heat transfer are discussed through graphs in detail.</p> https://ultraphysicalsciences.org/paper/1508/ Williamson fluid Radiation Peristaltic flow porous medium