Numerical Study of the Complexity of the Velocity Field at the Nucleation Site in Water Saturated Nucleate Boiling

Tao Jia, Liangyi Ma

Abstract: This study presents a numerical investigation of bubble growth during nucleate boiling in water using the finite element method via COMSOL Multiphysics. The analysis focuses on the evolution of the velocity field at the nucleation site under varying wall heat fluxes. Shannon entropy is employed to quantify the randomness of the velocity field, thereby capturing the complexity during the bubble formation and departure stages. Results show that the entropy values fluctuate during the initial phase and tend to stabilize, with higher heat fluxes leading to greater complexity. These findings provide insights into flow behavior near the boiling surface and enhance the understanding of the phase change processes.

Keywords: nucleate boiling, bubble growth, heat flux, Shannon entropy

How to Cite?: Tao Jia, Liangyi Ma, "Numerical Study of the Complexity of the Velocity Field at the Nucleation Site in Water Saturated Nucleate Boiling", Volume 14 Issue 12, December 2025, International Journal of Science and Research (IJSR), Pages: 1475-1479, https://www.ijsr.net/getabstract.php?paperid=SR251215203357, DOI: https://dx.doi.org/10.21275/SR251215203357