Open Access
ARTICLE
CHARACTERISTICS AND THERMAL PERFORMANCE OF NANOFLUID FILM OVER HORIZONTAL MULTI-FACETED CYLINDER
Fithry Mohd Amir*, Mohd Zamri Yusoff, Saiful Hasmady Abu Hassan
College of Engineering, Universiti Tenaga Nasional (UNITEN), Jalan IKRAM-UNITEN,43000, Kajang, Selangor, Malaysia
* Corresponding author. Email: fithrya@yahoo.com
Frontiers in Heat and Mass Transfer 2022, 18, 1-15. https://doi.org/10.5098/hmt.18.27
Abstract
Nanofluid film on a horizontal tube is investigated numerically on the circular and multi-faceted cylinder. The fluid flow characteristics, including film
thickness, shear stress, and thermal performance, are observed and analyzed. Fluid film on the circular surface is typical in many engineering
applications, but the study of nanofluid film on non-circular surface is deficient in literature. The study provides a numerical model of a multi-faceted
cylinder to simulate the nanofluid film on the non-circular surfaces using a volume of fluid (VOF) method. The ratio of Brownian motion to
thermophoretic diffusion, N
BT developed along the film thickness in phases, in which the dominant phase, the steady-state N
BT phase, can be used as
the average N
BT. Although, in general, the heat transfer performance of Alumina and Titania is better than water, producing higher HTC and Nu on
both cylinders, Water, however, displays significant improvement relative to the base thermal performance of water fluid film on the circular cylinder.
Keywords
Cite This Article
Amir, F. M., Yusoff, M. Z., Hasmady, S. (2022). CHARACTERISTICS AND THERMAL PERFORMANCE OF NANOFLUID FILM OVER HORIZONTAL MULTI-FACETED CYLINDER.
Frontiers in Heat and Mass Transfer, 18(1), 1–15.