Perturbation solution to heat conduction in melting or solidification with heat generation |
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Authors: | Zi-Tao Yu Li-Wu Fan Ya-Cai Hu Ke-Fa Cen |
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Institution: | (1) Institute of Thermal Science and Power Systems, Zhejiang University, Hangzhou, 310027, People’s Republic of China;(2) Mechanical Engineering Department, Auburn University, Auburn, AL 36849-5341, USA;(3) State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, People’s Republic of China |
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Abstract: | The Stefan problem involving a source term is considered in this technical note. As an example, planar solidification with
time-dependent heat generation in a semi-infinite plane is solved by use of a perturbation technique. The perturbation solution
is validated by reducing the problem to the case without heat generation whose exact solution is available. An application
to the case with constant heat generation is presented, for which a closed-form solution is obtained. The effects of heat
generation and Stefan number on the evolution of solidification are examined using the perturbation solution. |
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Keywords: | |
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