Temperature Rise in a Two-Layer Structure Induced by a Rotating or Dithering Laser Beam

Abstract

We study the maximum temperature rise induced by a rotating or dithering Gaussian laser beam on a two-layer body. First, we derive semi-analytical solutions by solving the transient three- dimensional heat equation in a semi-infinite domain with insulating surface. Second, we provide numerical solutions for a two-layer structure in a finite domain. Our results show that the maximum temperature rise can be reduced significantly either by applying a thin layer of coating on the protected object or by moving the beam or equivalently the object.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA591114

Entities

People

  • Hong Zhou

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Bessel Functions
  • Boundaries
  • Differential Equations
  • Equations
  • Geometry
  • Laser Beams
  • Lasers
  • Materials
  • Materials Processing
  • Mathematics
  • Optical Lattices
  • Partial Differential Equations
  • Radiation
  • Thermal Conductivity
  • Thermal Diffusivity
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Optical Physics and Photonics.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Microelectronics - Graphene