Effects of a Pulsatile Flow and an Endoscope on the Peristaltic Transport of a Newtonian Fluid

Abstract

In this paper, we investigate thermal pairwise quantum correlation for any pair of spins of a mixed-three-spin XXX Heisenberg system (with spins connected together with the nearest-neighbour (NN) and that of the next-nearest-neighbour (NNN) coupling constants J 1 and J 2 ) by means of concurrence and quantum discord, as functions of temperature T , magnetic field B and the coupling constants J 2 and J 1 . Some comparisons between these measures of entanglement are done for next-nearest-neighbour spins. We also express some magnetic properties and discuss the behaviour of the system in some special critical points. Some interesting and novel discussions are done to introduce some entanglement witnesses.

Entropy generation and mechanical efficiency in laminar peristaltic flow through an elliptical duct

“…The mechanical efficiency is another important hydrodynamic quantity in the peristaltic pumping phenomenon. It is proposed and defined by Shapiro et al 30 Following the calculation given in, 31 we find its expression as follows:…”

The Effect of Pulsatile Flow on the Peristaltic Transport of a Newtonian Fluid in a Cylindrical Tube with Permeable Wall

“…Assume that the flow rate F(t) in the wave frame resulting of this interaction is given by Rachid and Ouazzani, (9) …”

“…Chaturani and Samy [8] studied the effects of non-Newtonian nature of blood and pulsatility on flow through a stenosed tube. Recently Rachid and Ouazzani [9] has obtained a solution for the problem of peristaltic pulsatile flow in a tube. Some other reported recently which are worth mentioning Ravikumar et al [26], Rao et al [27] and Umamaheswar et al [28].…”