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Inverse design of thermal systems with spectrally dependent emissivities

机译:具有光谱相关发射率的热系统的逆设计

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摘要

This work extends the inverse design methodology to systems in which the emissivities of the surfaces are dependent on the wavelength. The objective is to find the powers of the heaters to achieve uniform temperature and heat flux on the design surface. The mathematical formulation is described by an ill-conditioned system of non-linear equations, which is regularized by the TSVD method. The solution involves an iterative approach in which the radiation distribution in the spectrum bands is repeatedly guessed and corrected as the estimation of the heaters temperatures evolves. The example cases demonstrate the effectiveness of the proposed methodology.
机译:这项工作将逆设计方法扩展到了表面发射率取决于波长的系统。目的是找到加热器的功率以在设计表面上实现均匀的温度和热通量。数学公式由非线性方程的病态系统描述,该系统通过TSVD方法进行了正则化。该解决方案涉及一种迭代方法,其中随着加热器温度估计的发展,反复猜测和校正光谱带中的辐射分布。示例案例说明了所提出方法的有效性。

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  • 作者单位

    Department of Mechanical Engineering, Federal University of Rio Grande do Sul, UFRGS, Rua Sarmento Leite, 425 Centra, CEP: 90050-170, Porto Alegre, RS, Brazil;

    Department of Mechanical Engineering, Federal University of Rio Grande do Sul, UFRGS, Rua Sarmento Leite, 425 Centra, CEP: 90050-170, Porto Alegre, RS, Brazil;

    Department of Mechanical Engineering, Federal University of Rio Grande do Sul, UFRGS, Rua Sarmento Leite, 425 Centra, CEP: 90050-170, Porto Alegre, RS, Brazil;

    Department of Mechanical Engineering, Federal University of Rio Grande do Sul, UFRGS, Rua Sarmento Leite, 425 Centra, CEP: 90050-170, Porto Alegre, RS, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    thermal processing; inverse problems; thermal radiation; spectral dependence; TSVD regularization;

    机译:热处理;反问题热辐射光谱依赖性TSVD正则化;

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