Hyperbolic heat conduction in the semi-infinite body with a time-dependent laser heat source |
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Authors: | M Lewandowska |
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Institution: | (1) Institute of Physics Technical University of Szczecin Al. Piastów 48, p-70-311 Szczecin Poland, PL |
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Abstract: | The Cattaneo hyperbolic and classical parabolic models of heat conduction in the laser irradiated materials are compared.
Laser heating is modelled as an internal heat source, whose capacity is given by g(x,t)= I(t)(1−R)μexp(−μx). Analytical solution for the one-dimensional, semi-infinite body with the insulated boundary is obtained using Laplace transforms
and the discussion of solutions for different time characteristics of the heat source capacity (constant, instantaneous, exponential,
pulsed and periodic) is presented.
Received on 18 May 1999 |
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