Analytical solution to laser short-pulse heating of microsized metal wire: volumetric and surface heat source considerations

作者：Yilbas B S^*; Al Dweik A Y

来源：Canadian Journal of Physics, 2012, 90(9): 911-918.

DOI：10.1139/P2012-087

Analytical solution for laser short-pulse heating of a micro-sized metal wire is presented. In the analysis, volumetric and surface heat sources are incorporated for the same pulse intensity. The volumetric heat source resembles absorption by irradiated field according to Lambert%26apos;s Beer law while a surface heat source represents short pulse heating through high intensity thermal contact at the surface. The method of Lie point symmetries is combined with a Fourier cosine transformation to solve the temperature equation with appropriate boundary conditions. It is found that temperature profiles differ significantly for volumetric heat source and surface heat source considerations; in which case, volumetric heat source consideration results in considerably lower surface temperatures than that of the surface heat source consideration.

• 出版日期2012-9
• 单位中国石油大学（北京）