Laser-epoxy interaction and plume shielding in the presence of crossflow

Daniil A. Andrienko

doi:10.1117/12.3010607

11 April 2024 Laser-epoxy interaction and plume shielding in the presence of crossflow

Daniil A. Andrienko

Proceedings Volume 12939, High-Power Laser Ablation VIII; 129390R (2024) https://doi.org/10.1117/12.3010607
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States

Abstract

The present work considers the interaction of a continuous-wave (CW) laser with carbon-fiber reinforced polymers in the presence of a subsonic crossflow. A multi-physical approach has been developed to address this computational problem. The optical model of a plume has been coupled with the flow and material response model, encompassing the formation and transport of soot particulates. At given power densities of the laser beam the gaseous component of a plume is nearly transparent to the laser beam, and the laser beam shielding by a plume arises from soot particulates. Soot particulates do not reach the outer edge of the boundary layer due to a small diffusion coefficient compared to gaseous species. These particulates are swept downstream by the crossflow, creating a favorable window for the transmission of the laser energy to the material in terms of the crossflow velocity-laser power density envelope.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Daniil A. Andrienko "Laser-epoxy interaction and plume shielding in the presence of crossflow", Proc. SPIE 12939, High-Power Laser Ablation VIII, 129390R (11 April 2024); https://doi.org/10.1117/12.3010607

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