An unfitted discontinuous Galerkin scheme for conservation laws on evolving surfaces

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Christian Engwer Thomas Ranner Sebastian Westerheide

Abstract

Motivated by considering partial differential equations arising from conservation laws posed on evolving surfaces, a new numerical method for an advection problem is developed and simple numerical tests are performed. The method is based on an unfitted discontinuous Galerkin approach where the surface is not explicitly tracked by the mesh which means the method is extremely flexible with respect to geometry. Furthermore, the discontinuous Galerkin approach is well-suited to capture the advection driven by the evolution of the surface without the need for a space-time formulation, back-tracking trajectories or streamline diffusion. The method is illustrated by a one-dimensional example and numerical results ar presented that show good convergence properties for a simple test problem.

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How to Cite
ENGWER, Christian; RANNER, Thomas; WESTERHEIDE, Sebastian. An unfitted discontinuous Galerkin scheme for conservation laws on evolving surfaces. Proceedings of the Conference Algoritmy, [S.l.], p. 44-54, feb. 2016. Available at: <http://www.iam.fmph.uniba.sk/amuc/ojs/index.php/algoritmy/article/view/393>. Date accessed: 22 sep. 2017.
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References

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