Heat transfer processes proceeding in the system casting-mould-environment are considered. In par... more Heat transfer processes proceeding in the system casting-mould-environment are considered. In particular, the inverse problem connected with the estimation of thermal conductivity and volumetric specific heat of mould material is presented. To estimate the parameters, the additional information concerning the temperature history at the points selected from domain considered is necessary. The essential problem is a proper choice of sensors localization. The application of sensitivity analysis assures the increase of identification efficiency and this problem is here presented. In the final part of the paper the examples of computations are shown.
Abstract. In the paper the application of the boundary element method for numerical solution of t... more Abstract. In the paper the application of the boundary element method for numerical solution of the inverse parametric problem is presented, this means the temperature dependent thermal conductivity is identified. The thermal conductivity of the material appears in the fundamental Fourier law and also in the basic energy equation (the Kirchhoff-Fourier equation). This parameter is determined on the basis of physical experiments. The numerical identification of the thermal conductivity is possible on the basis of the knowledge of temperature field in the domain considered.
Heat transfer processes proceeding in the system casting-mould-environment are considered. In par... more Heat transfer processes proceeding in the system casting-mould-environment are considered. In particular, the inverse problem connected with the estimation of thermal conductivity and volumetric specific heat of mould material is presented. To estimate the parameters, the additional information concerning the temperature history at the points selected from domain considered is necessary. The essential problem is a proper choice of sensors localization. The application of sensitivity analysis assures the increase of identification efficiency and this problem is here presented. In the final part of the paper the examples of computations are shown.
Abstract. In the paper the application of the boundary element method for numerical solution of t... more Abstract. In the paper the application of the boundary element method for numerical solution of the inverse parametric problem is presented, this means the temperature dependent thermal conductivity is identified. The thermal conductivity of the material appears in the fundamental Fourier law and also in the basic energy equation (the Kirchhoff-Fourier equation). This parameter is determined on the basis of physical experiments. The numerical identification of the thermal conductivity is possible on the basis of the knowledge of temperature field in the domain considered.
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Papers by Ewa Majchrzak