Identification of radiant source in an enclosure by reduced model
| Autor: | Benjamin Gaume, Yassine Rouizi, Frédéric Joly, Olivier Quéméner |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 2116:012112 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/2116/1/012112 |
| Popis: | We propose an original method to recover from a few measurement points the integrity of the temperature field of a furnace heated by a radiant thermal source. The radiant thermal source is first identified via a low order reduced model based on based on AROMM (Amalgam Reduced Order Modal Model) method which preserves the integrity of the geometry. The minimization is performed via a trust-region reflective least squares algorithm implemented in MATLAB “lsqcurvefit” function. From that identified heat flux, the integrity of the thermal field is then recovered by direct simulation thanks to a reduced model of higher rank to have a better precision. The treated application is a complex titanium piece heated by two radiant panels placed in a furnace. With four measuring points, the temperature of the whole thermal scene is retrieved at all times with an average error around 1 K on the studied object. |
| Databáze: | OpenAIRE |
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