Open Access
ARTICLE
MULTICOMPONENT GAS-PARTICLE FLOW AND HEAT/MASS TRANSFER INDUCED BY A LOCALIZED LASER IRRADIATION ON A URETHANE-COATED STAINLESS STEEL SUBSTRATE
Nazia Afrina, Yijin Maoa, Yuwen Zhanga,*, J. K. Chena, Robin Ritterb, Alan Lampsonb, Jonathan Stohsc
a
Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65201, USA
b
Tau Technologies, LLC, 1601 Randolph Rd., SE, 110s, Albuquerque, NM 87106, USA
c
Air Force Research Lab-RDLT, 3550 Aberdeen Ave SE, Bldg 760, Kirtland AFB, NM 87117, USA
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2016, 7, 1-8. https://doi.org/10.5098/hmt.7.7
Abstract
A three-dimensional numerical simulation is conducted for a complex process in a laser-material system, which involves heat and mass transfer in a
compressible gaseous phase and chemical reaction during laser irradiation on a urethane paint coated on a stainless steel substrate. A finite volume
method (FVM) with a co-located grid mesh that discretizes the entire computational domain is employed to simulate the heating process. The results
show that when the top surface of the paint reaches a threshold temperature of 560 K, the polyurethane starts to decompose through chemical reaction.
As a result, combustion products CO
2, H
2O and NO
2 are produced and chromium (III) oxide, which serves as pigment in the paint, is ejected as solid
parcels from the paint into the gaseous domain. Variations of temperature, density and velocity at the center of the laser irradiation spot, and the
concentrations of reaction reactant/products in the gaseous phase are presented and discussed, by comparing six scenarios with different laser powers
ranging from 2.5 kW to 15 kW with an increment of 2.5 kW.
Keywords
Cite This Article
APA Style
Afrin, N., Mao, Y., Zhang, Y., Chen, J.K., Ritter, R. et al. (2016). MULTICOMPONENT GAS-PARTICLE FLOW AND HEAT/MASS TRANSFER INDUCED BY A LOCALIZED LASER IRRADIATION ON A URETHANE-COATED STAINLESS STEEL SUBSTRATE. Frontiers in Heat and Mass Transfer, 7(1), 1-8. https://doi.org/10.5098/hmt.7.7
Vancouver Style
Afrin N, Mao Y, Zhang Y, Chen JK, Ritter R, Lampson A, et al. MULTICOMPONENT GAS-PARTICLE FLOW AND HEAT/MASS TRANSFER INDUCED BY A LOCALIZED LASER IRRADIATION ON A URETHANE-COATED STAINLESS STEEL SUBSTRATE. Front Heat Mass Transf. 2016;7(1):1-8 https://doi.org/10.5098/hmt.7.7
IEEE Style
N. Afrin et al., " MULTICOMPONENT GAS-PARTICLE FLOW AND HEAT/MASS TRANSFER INDUCED BY A LOCALIZED LASER IRRADIATION ON A URETHANE-COATED STAINLESS STEEL SUBSTRATE," Front. Heat Mass Transf., vol. 7, no. 1, pp. 1-8. 2016. https://doi.org/10.5098/hmt.7.7