Heat transfer analysis of a pineapple leaf fiber nanofluid/MWCNT–water convective flow over a disk

V. R. Prasad, K. Jyothi, C. Sai Pranathi, K. Reddy

Department of Humanities and Basic Sciences, G. Pulla Reddy Engineering College, Kurnool, Andra Pradesh, India

Abstract: We examine the heat and mass transfer characteristics of nanofluid containing a pineapple leaf fiber (PLF) and multi-walled carbon nanotubes (MWCNTs) dispersed in water. We evaluate the Nusselt and Sherwood numbers and the skin friction coefficient under different conditions. The PLF is organic, MWCNTs are widely used for enhancing thermal conductivity. Equations are solved using numerical finite-element methods to analyze the impact of nanoparticles on transfer phenomena. Both nanofluids enhance transfer rates with MWCNTs showing superior thermal properties. The PLF offers sustainability and cost benefits. This study contributes to knowledge on nanofluids, sustainable materials, and applications in thermal management.

Keywords: pineapple leaf fiber nanoparticles, multi-walled carbon nanotubes, disk geometry, sustainable nanomaterials, Nusselt number, Sherwood number, skin friction coefficient, thermal conductivity.

Received: 22.02.2025
Revised: 22.02.2025

DOI: 10.4213/tmf10956

 English version: Theoretical and Mathematical Physics, 2025, 223:3, 992–999

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