Austrian Academy of Sciences

Elektronisches Publikationsportal der Österreichischen Akademie der Wissenschaften
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    VIII. KATALOG

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    A boundary and finite element coupling for a magnetically nonlinear eddy current problem. ETNA - Electronic Transactions on Numerical Analysis

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    The aim of this paper is to provide a mathematical and numerical analysis for a FEM-BEM coupling approximation of a magnetically nonlinear eddy current formulation by using FEM only on the conducting domain, and by imposing the integral conditions on its boundary. The nonlinear relationship between flux density and the magnetic field intensity is given by a physical parameter called magnetic reluctivity, which is assumed to depend on the Euclidean norm of the magnetic induction in the conducting domain. We use the nonlinear monotone operator theory for parabolic equations to show that the continuous formulation obtained for the coupling is a well-posed problem. Furthermore, we use Nédélec edge elements, standard nodal finite elements, and a backward-Euler time scheme, to obtain a fully discrete formulation and to prove quasi-optimal error estimates

    GIS-based Heat Demand Modelling for Tourist Accommodation. A Case Study in the State of Salzburg. GI_Forum|GI_Forum 2019, Volume 2|

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    Spatial energy planning plays a key role in energy transition. Geo-information systems (GIS) make an important contribution in this context: spatially differentiated modelling, representation, and analysis of energy demands in the building sector are the basis for well-founded strategic energy planning. This paper presents a GIS-based method to model the heat demand for tourist accommodation in the federal state of Salzburg. The paper includes the development, description, implementation and validation of the heat demand modelling based on a bottom-up approach. The discussion reflects on possible improvements to the approach

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    Elektronisches Publikationsportal der Österreichischen Akademie der Wissenschaften is based in Austria
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