Calculation of temperature field in a thin moving sheet heated with laser beam

被引:21
作者
Brockmann, R
Dickmann, K
Geshev, P
Matthes, KJ
机构
[1] Univ Appl Sci Muenster, Dept Engn Phys, Ctr Laser, D-48565 Steinfurt, Germany
[2] Russian Acad Sci, Inst Thermophys, Novosibirsk 630090, Russia
[3] Tech Univ Chemnitz, Inst Prod Engn Welding Technol, D-09107 Chemnitz, Germany
关键词
heat transfer; laser; thermophysical;
D O I
10.1016/S0017-9310(02)00304-6
中图分类号
O414.1 [热力学];
学科分类号
摘要
A temperature field in a thin moving sheet heated with a laser beam is calculated. The power density in the beam is distributed according the Gauss function. Cooling effects caused by the free or forced convection in ambient gas is taken into account. The problem becomes two dimensional by averaging the temperature field over the sheet thickness. Two-dimensional integral Fourier transformation on space coordinates is applied to solve the problem. It gives an analytical solution of the problem in the Fourier space. The inverse Fourier transformation is fulfilled and the solution is represented via an integral having exponential asymptotes at infinity. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:717 / 723
页数:7
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