Investigation of Thermal Conductivity in Advanced Metallic Materials via Computational Fluid Dynamics

Résumé

This study investigates the transient thermal behavior of Ti6Al4V alloy using computational fluid dynamics (CFD) simulations. The primary objective is to characterize the alloy’s heat-conduction performance under controlled thermalloading conditions. A dual-scale modeling approach was employed, combining a simplified body-centered cubic (BCC) lattice structure to represent the β-phase and a macroscopic solid domain to simulate the bulk material response. The simulations were performed over a 10-minute interval, with thermal data extracted at 1-, 3-, 5-, and 10-minute time steps. The results indicate delayed, uneven heat propagation in Ti6Al4V, attributed to its intrinsically low thermal conductivity (6.5 W/m·K). The findings provide insight into the alloy’s thermal limitations, particularly in applications requiring efficient heat dissipation. The study demonstrates the potential of CFD as a predictive tool for evaluating thermal performance in advanced metallic materials.