Abstract
The present work illustrates a difficulty with the level-set method to accurately capture the curvature of interfaces in regions that are of equal distance to two or more interfaces. Such regions are characterized by kinks in the level-set function where the derivative is discontinuous. Thus the standard discretization scheme is not suitable. Three discretization schemes are outlined that are shown to perform better than the standard discretization on two selected test cases.
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Acknowledgements
The authors acknowledge Bernhard Müller (Norwegian University of Science and Technology) and Svend Tollak Munkejord (SINTEF Energy Research) for valuable feedback on the manuscript.
This work was financed through the Enabling Low-Emission LNG Systems project, and the authors acknowledge the contributions of GDF SUEZ, Statoil and the Petromaks programme of the Research Council of Norway (193062/S60).
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Lervåg, K.Y., Ervik, Å. (2013). Curvature Calculations for the Level-Set Method. In: Cangiani, A., Davidchack, R., Georgoulis, E., Gorban, A., Levesley, J., Tretyakov, M. (eds) Numerical Mathematics and Advanced Applications 2011. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33134-3_23
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DOI: https://doi.org/10.1007/978-3-642-33134-3_23
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