Pulsatile flow and peristaltic motion interaction of Walter’s B liquid J Bala Anasuya, Suripeddi Srinivas Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, 2026 This work focuses on the interaction of peristaltic with the induced periodic flow of Walters B liquid in a channel with porous space. The model takes into account the impact of Hall current. In order to solve the governing flow equations, the amplitude ratio (wave amplitude/channel width) is used as a parameter in the perturbation technique. The impact related to various parameters on the velocity distribution, stress at the walls and streamline patterns have been examined using graphical representation. Our analysis indicates that with a rise of the Hall current parameter, the velocity of the fluid enhances whereas by rising the Hartmann number, we observed a fall in the velocity. Further, the size of the trapping bolus grows with the rise of the Hall parameter and Reynolds number. The size of the bolus, on the other hand, decreases as the viscoelastic parameter rises. To validate the model, the analytical solution derived has been compared with that of Afifi and Gad (Acta Mechanica 149, 229–237 (2001)), and the outcomes show remarkable agreement.
Analysis of activation energy on the Johnson-Segalman nanofluid through an asymmetric microchannel: Numerical study A. Magesh, P. Tamizharasi, O. D. Makinde, S. Srinivas International Journal of Modern Physics B, 2025 Activation energy and thermal radiation as a means of heat transfer are significant and fascinating phenomena for scientists and researchers because of their significance in cancer treatment. As a result, heat kills cancer cells and shrinks tumors, making hyperthermia therapy a cutting-edge cancer treatment. This paper examines the peristaltic motion of a Johnson–Segalman nanofluid across an asymmetric pliable microchannel under the impact of activation energy. We obtained the governing equations for the non-Newtonian nanofluid. Partial differential equations (PDEs) are reduced to ordinary differential equations (ODEs) under the assumption of large wavelengths and tiny Reynolds number assumptions. The flow patterns and trapping phenomena were numerically generated using the NDSolve command of the computational mathematical software Mathematica. The influence of important liquid parameters was examined with graphical representations of the results. The current study reveals an enhancement in the heat generation parameter, an enhancement in the temperature and a reduction in the concentration.
