The present study aims to investigate the of double-diffusive convection on peristaltic flow under assumption long wavelength and low Reynolds number. mathematical modelling for a two-dimensional flow, along with double diffusion in nanofluids is considered. motivation research work analyze effects thermal radiation through porous medium nonuniform channel. heat flux linear approximation employ...

The effects of induced magnetic field, thermal and concentration convection on the peristaltic flow Prandtl nanofluids are explored in this study an inclined asymmetric channel. A detailed mathematical explanation is given for with double-diffusivity field. To simplify non-linear partial differential equations, long wavelength low approximation Reynolds number used. Using numerical technique, e...

In this paper, we studied the effects of heat transfer and magnetic field on the peristaltic flow of a Jeffrey fluid through a porous medium in an asymmetric channel under the assumptions of long wavelength and low Reynolds number. Expressions for the velocity and pressure gradient are obtained analytically. The effects of Hartmann number, Darcy number, phase shift, Jeffrey fluid parameter and ...

The mechanisms of prokinetic action of tegaserod in the gastrointestinal tract has not been studied in detail. The aim of this study was to investigate the effect of tegaserod on peristaltic reflexes and propagating peristaltic waves in guinea pig ileum. A partitioned organ bath divided into three chambers was used to investigate the effect of tegaserod on peristaltic reflexes. A sensory stimul...

The effect of colonic distension and changes in intraluminal pH and osmolality have been investigated in patients with well established colostomies. Small volumes of acidic buffer (pH4) and hypertonic saline (4%) were found to be only a very weak peristaltic stimulus. Strong hypertonic solutions (glycerine BP) induced a poorly sustained peristaltic response in the majority of cases. Distension ...

This paper analyzes the peristaltic flow of an incompressible micropolar nanofluid in a tapered asymmetric channel in the presence of thermal radiation and heat sources parameters. The rotation of the nanoparticles is incorporated in the flow model. The equations governing the nanofluid flow are modeled and exact solutions are managed under long wavelength and flow Reynolds number and long wave...

In flow analysis, use of a steady and pulseless flow was considered essential for ensuring a reproducible handling of the flowing sample. To this end, peristaltic and syringe pumps have been the propelling device in the vast majority of the flow analysers. Recently, the number of applications involving pulsed flow has been increasing. Most of them refer to use of solenoid pumps, the essence of ...

Peristaltic transport of an incompressible electrically conducting viscous fluid in an inclined planar asymmetric channel is studied. The asymmetry is produced by choosing the peristaltic wave train on the walls to have different amplitude and phase. The closed form solutions of momentum and energy equation in presence of viscous dissipation term are obtained for long wave length and low Reynol...

Digestion is the process of breaking down food into smaller components, by mechanical and enzymatic action in the digestive tract, so that the smaller nutrient molecules can be more easily absorbed in the intestinal tract. To study and analyze the human digestive process, different methodologies have been used in the past. In general, in vivo feeding studies with humans provide the most accurat...

CONSTANTINOU, c. E. Renal pelvic pacemaker control of ureteral peristaltic rate. Am. J. Physiol. 226(6): 1413-1419. l974.-To gain insight into the mechanism responsible for the generation of ureteral peristalsis, a canine experimental model was constructed using manometric methods in the evaluation of the fundamental renal pelvic rhythm and the electrophysiological methods for the characterizat...