Influence of nanoparticle shapes in nanofluid film boiling on vertical cylinders: A numerical study
Abstract
This research explores how nanoparticle shapes affect the thermal behavior of nanofluid film boiling along a vertical cylinder, using a Continuous-Species-Transfer method within a Computational Multi-Fluid Dynamics framework. The behavior of nanoparticles in both liquid and vapor phases is modeled, accounting for Brownian motion and thermophoresis. A comprehensive two-dimensional axisymmetric analysis is conducted to investigate the effects of various Al2O3 nanoparticle shapes, including spheres, bricks, blades, cylinders, and platelets, on boiling heat transfer. The results demonstrate that nanoparticle shape has a minimal impact on deposition dynamics but significantly affects kinematic viscosity, particularly for platelet-shaped nanoparticles. Blade-shaped nanoparticles provide substantial enhancement of thermal transport, as indicated by pronounced temperature gradients and increased thermal conductivity. These nanoparticles also improve the Nusselt number, suggesting enhanced boiling heat transfer efficiency. This improvement is particularly significant at higher nanoparticle concentrations, although the relationship is not strictly linear. Future work will explore different nanoparticle materials, boiling scenarios, and experimental validation.
Versions
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BibTeX
@misc{yahyaee2026influence,
title = {{Influence of nanoparticle shapes in nanofluid film boiling on vertical cylinders: A numerical study}},
author = {Ali Yahyaee},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.31151},
eprint = {2610.31151},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.31151},
note = {CC BY-SA 4.0},
}
RIS
TY - UNPB
TI - Influence of nanoparticle shapes in nanofluid film boiling on vertical cylinders: A numerical study
AU - Ali Yahyaee
PY - 2026
DA - 2026/10/22
PB - arXiv
DO - 10.48550/arxiv.2610.31151
UR - https://arxiv.org/abs/2610.31151
AB - This research explores how nanoparticle shapes affect the thermal behavior of nanofluid film boiling along a vertical cylinder, using a Continuous-Species-Transfer method within a Computational Multi-Fluid Dynamics framework. The behavior of nanoparticles in both liquid and vapor phases is modeled, accounting for Brownian motion and thermophoresis. A comprehensive two-dimensional axisymmetric analysis is conducted to investigate the effects of various Al2O3 nanoparticle shapes, including spheres, bricks, blades, cylinders, and platelets, on boiling heat transfer. The results demonstrate that nanoparticle shape has a minimal impact on deposition dynamics but significantly affects kinematic viscosity, particularly for platelet-shaped nanoparticles. Blade-shaped nanoparticles provide substantial enhancement of thermal transport, as indicated by pronounced temperature gradients and increased thermal conductivity. These nanoparticles also improve the Nusselt number, suggesting enhanced boiling heat transfer efficiency. This improvement is particularly significant at higher nanoparticle concentrations, although the relationship is not strictly linear. Future work will explore different nanoparticle materials, boiling scenarios, and experimental validation.
ER -