Abstract
In a preceding paper (MSIA, 2012), we have studied the radiative heating of a glass plate. We have proved existence and uniqueness of the solution. Here, we want to study the semi-discrete problem and to prove a priori error estimates. Previously, in that purpose, we have to study the regularity of the solution to the exact problem and of its time derivative. A very important property, Proposition 13, is remarked concerning our elliptic projection, the milestone in deriving the a priori error estimates. A numerical test corroborating our theoretical a priori bounds is given.
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Notes
For convenience the temperatures are cited in \( {{}^\circ }\mathrm{C}\); the corresponding absolute temperatures in \( {{}^\circ }\mathrm{K}\) are obtained by adding 273.15 to the temperatures cited in \( {{}^\circ }\mathrm{C}\).
I take here the opportunity to thank my colleague F. Béchet from the Tempo laboratory in our university, who has made me that remark.
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Paquet, L. Radiative heating of a glass plate: the semi-discrete problem (second revision). Afr. Mat. 29, 295–330 (2018). https://doi.org/10.1007/s13370-018-0542-z
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DOI: https://doi.org/10.1007/s13370-018-0542-z
Keywords
- Planck function
- Radiative heat flux in a glass plate
- Nonlinear heat-conduction equation
- Regularity of the exact solution and of its time derivative
- Semi-discrete problem
- Elliptic projection
- A priori error estimates