Temperature rise induced by a rotating or dithering laser beam
MetadataShow full item record
We study the maximum temperature rise induced by a rotating or dithering Gaussian laser beam on a semi-infinite body. An analytical solution is obtained by solving the transient three-dimensional heat equation in a semi-infinite domain with insulating surface. The effect of rotating or dithering frequency on maximum temperature rise is quantitatively investigated for stainless steel and carbon nanotube-alumina composites. It is found that the maximum temperature rise can be reduced by increasing the frequency of the rotating or dithering beam and by increasing the radius of the rotating or dithering trajectory. For a fixed frequency, the maximum temperature rise induced by a rotating beam is lower than the one induced by a dithering beam. Finally, we give the asymptotic solution of the temperature rise for large frequency of a rotating Gaussian beam.
The article of record as published may be located at http://www.m-hikari.com/astp/astp2011/astp9-12-2011/zhouASTP9-12-2011.pdf
Showing items related by title, author, creator and subject.
Numerical Solution for a Transient Temperature Distribution on a Finite Domain Due to a Dithering or Rotating Laser Beam Tan, Tsuwei; Zhou, Hong (2013);The temperature distribution due to a rotating or dithering Gaussian laser beam on a finite body is obtained numerically. The authors apply various techniques to solve the nonhomogeneous heat equation in different spatial ...
Transient temperature distribution on a finite domain induced by a dithering or rotating laser beam Zhou, Hong; Tan, Tsuwei (2011-03-06);We obtain the temperature distribution due to a rotating or dithering Gaussian laser beam on a finite body numerically by solving one-dimensional, two-dimensional and three dimensional nonhomogeneous transient heat equation ...
Tan, Tsuwei. (Monterey, California. Naval Postgraduate School, 2010-12);High energy laser weapons have been evolving progressively in recent years. These weapons deliver high-intensity beams to a target and can instantly destroy or burn it. They may cause potential threats to Navy ships, ...