Ramakanta Meher

This study investigates the three-dimensional viscous flow induced by a decelerating, rotating, and vertically translating porous disk with viscosity dependent on temperature. Unlike conventional analyses that assume constant viscosity, three distinct viscosity models—constant, inverse temperature-dependent, and exponential temperature-dependent are systematically examined to capture realistic thermochemical behavior.

Abstract Micropolar nanofluids' heat and mass transport characteristics have attracted much interest as they find use in sophisticated industrial processes and advanced engineering. This work explores the behaviour of micropolar nanofluids constrained between rotating parallel plates by including thermal radiation to improve heat transfer efficiency.

Abstract This paper focuses on a combined SIR-SI epidemic model to evaluate the transmission dynamics of dengue fever, integrating the susceptible-infected-recovered (SIR) framework for the human population with the susceptible-infected (SI) framework for mosquitoes. The model is formulated as a system of nonlinear differential equations and is further extended by incorporating fractional-order derivatives in the Caputo sense to capture memory effects in disease transmission.