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- W3032131997 endingPage "3523" @default.
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- W3032131997 abstract "Purpose The purpose of this paper is to develop a transform method and a deep learning model to identify the inner surface shape based on the measurement temperature at the outer boundary of the pipe. Design/methodology/approach The training process is assisted by the finite element method (FEM) simulation which solves the direct problem for the data preparation. To avoid re-meshing the domain when the inner surface shape varies, a new transform method is proposed to transform the shape identification problem into the effective thermal conductivity identification problem. The deep learning model is established to set up the relationship between the measurement temperature and the effective thermal conductivity. Then the unknown geometry shape is acquired by the mapping between the inner shape and the effective thermal conductivity through the inverse transform method. Findings The new method is successfully applied to identify the internal boundary of a pipe with eccentric circle, ellipse and nephroid inner geometries. The results show that as the measurement points increased and the measurement error decreased, the results became more accurate. The position of the measurement point and mesh density of the FEM model have less effect on the results. Originality/value The deep learning model and the transform method are developed to identify the pipe inner surface shape. There is no need to re-mesh the domain during the computation progress. The results show that the proposed method is a fast and an accurate tool for identifying the pipe inner surface." @default.
- W3032131997 created "2020-06-05" @default.
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- W3032131997 date "2020-05-28" @default.
- W3032131997 modified "2023-10-14" @default.
- W3032131997 title "Identification of pipe inner surface in heat conduction problems by deep learning and effective thermal conductivity transform" @default.
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- W3032131997 doi "https://doi.org/10.1108/ec-01-2020-0012" @default.
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