Transient Heat Conduction in Solids Irradiated by a Moving Heat Source

Nicola Bianco; Oronzio Manca; Sergio Nardini; Salvatore Tamburino

doi:10.4028/www.scientific.net/DDF.283-286.358

Paper Titles

Applied Conditions for a Diffusion Electrochemical Method for Surface Streamlines Visualisation
p.335

Study of Macrosegregation Defects Formation Caused by Double Diffusive Convective Flow during Solidification of a Binary Alloy
p.340

Experimental and Numeric Study of Flow Around a Parallelepiped Obstacle Issued from a Bent Chimney
p.346

Numerical Model for Multilayer Thin Films Irradiated by a Moving Laser Source
p.352

Transient Heat Conduction in Solids Irradiated by a Moving Heat Source
p.358

Lattice Boltzmann Simulations for Thermal Conductivity Estimation in Heterogeneous Materials
p.364

Hydrogen Trap on the Microstructure of Cr-Mo Type Steels
p.370

Problem of the Variability of Substitute Thermo-Physical Properties for Heat Transfer Modelling in Iso- and Iso-Exo Porous Materials
p.376

Heat Transfer during Hot Distortion Test of Ceramic Porous Material Bonded by Various Resins
p.382

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Transient Heat Conduction in Solids Irradiated by a Moving Heat Source

Abstract:

Transient three-dimensional temperature distribution in a solid irradiated by a moving Gaussian laser beam was investigated numerically by means of COMSOL Multiphysics 3.3. The investigated work-piece are simply brick-type solids. A laser source is considered moving with constant velocity along the motion direction. The solid dimension along the motion direction is assumed as semi-infinite while width and thickness are considered finite. Several different grid distributions are tested to ensure that the calculated results are grid independent. Typical parameters involved in the processes for any particular application should be evaluated, in order to optimize the material processing and forecast the solid behavior. The results are presented in terms of temperature profiles and thermal fields are given for some Biot and Peclet numbers.