Sharif University of Technology Scientia Iranica 1026-3098 32 13 2025 08 01 Numerical investigation of the heat transfer and peristaltic flow through an asymmetric channel having variable viscosity and electric conductivity 24193 10.24200/sci.2023.60404.6783 EN Jamil Abbas Haider Abdus Salam School of Mathematical Sciences, Government College University, Lahore, Pakistan. Sana Gul Abdus Salam School of Mathematical Sciences, Government College University, Lahore, Pakistan. Sohail Nadeem Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan. Department of Mathematics, Wenzhou University, Wenzhou, P.R. China. 0000-0002-1052-011X Journal Article 2022 05 12 The peristaltic flow of nanofluids is a topic of growing interest in fluid dynamics. This study investigates the effect of temperature-dependent viscosity and electric conductivity on the peristaltic flow of nanofluids. The mathematical model of the peristaltic flow is developed using the governing equations of continuity, momentum, and energy for a Newtonian fluid. Large wavelength and small Reynolds number (Re) assumptions are used to study peristaltic flow to simplify the equations of continuity, momentum, and energy. In this article, the nanofluids are assumed to be electrically conducting and temperature dependent, and the effects of Hartman number (Ha) and Eckert number (Ec) is studied. The resulting equations are solved using the Shooting Method. The results show that the temperature-dependent viscosity and electric conductivity significantly affect the peristaltic flow of nanofluids. The flow rate and pressure gradient decrease with increasing viscosity and conductivity while the temperature and heat transfer rate increase. Moreover, the nanofluid concentration and particle size significantly impact the flow characteristics. In conclusion, this study comprehensively analyses the peristaltic flow of nanofluids with temperature-dependent viscosity and electric conductivity. The results can be useful for understanding the behavior of nanofluids in various applications, such as drug delivery systems, microfluidics, and thermal management. https://scientiairanica.sharif.edu/article_24193_a9a0a216c9719b954ac87a8f4426de4b.pdf