@Article{hmt.7.7,
AUTHOR = {Nazia Afrin, Yijin Mao, Yuwen Zhang, J. K. Chen, Robin Ritter, Alan Lampson, Jonathan Stohs},
TITLE = {MULTICOMPONENT GAS-PARTICLE FLOW AND HEAT/MASS  TRANSFER INDUCED BY A LOCALIZED LASER IRRADIATION ON A  URETHANE-COATED STAINLESS STEEL SUBSTRATE},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {7},
YEAR = {2016},
NUMBER = {1},
PAGES = {1--8},
URL = {http://www.techscience.com/fhmt/v7n1/54695},
ISSN = {2151-8629},
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<sub>2</sub>, H<sub>2</sub>O and NO<sub>2</sub> 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.},
DOI = {10.5098/hmt.7.7}
}