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Communication Dans Un Congrès Année : 2016

Investigation on reduced thermal models for simulating infrared images in fusion devices

Résumé

In fusion facilities, the in-vessel wall receives high heat flux density up to 20 MW/m 2. The monitoring of in-vessel components is usually ensured by infra-red (IR) thermography but with all-metallic walls, disturbance phenomenon as reflections may lead to inaccurate temperature estimates, potentially endangering machine safety. A full predictive photonic simulation is then used to assess accurately the IR measurements. This paper investigates some reduced thermal models (semi-infinite wall, thermal quadrupole) to predict the surface temperature from the particle loads on components for a given plasma scenario. The results are compared with a reference 3D Finite Element Method (Ansys Mechanical) and used as input for simulating IR images. The performances of reduced thermal models are analysed by comparing the resulting IR images.
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Dates et versions

hal-01794917 , version 1 (18-05-2018)

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J. Gerardin, M-H Aumeunier, M. Firdaouss, J-L Gardarein, Fabrice Rigollet. Investigation on reduced thermal models for simulating infrared images in fusion devices. 7th European Thermal-Sciences Conference, Jun 2016, Krakow, Poland. ⟨10.1088/1742-6596/745/3/032019⟩. ⟨hal-01794917⟩
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