491	RWTH Publication No: 767102        2019        IGPM491.pdf
TITLE	Higher order trace finite element methods for the surface Stokes equation
AUTHORS	Thomas Jankuhn, Arnold Reusken
ABSTRACT	In this paper a class of higher order finite element methods for the discretization of surface Stokes equations is studied. These methods are based on an unfitted finite element approach in which standard Taylor-Hood spaces on an underlying bulk mesh are used. For treating the constraint that the velocity must be tangential to the surface a penalty method is applied. Higher order geometry approximation is obtained by using a parametric trace finite element technique, known from the literature on trace finite element methods for scalar surface partial differential equations. Based on theoretical analyses for related problems, specific choices for the parameters in the method are proposed. Results of a systematic numerical study are included in which different variants are compared and convergence properties are illustrated.
KEYWORDS	surface Stokes equation, trace finite element method, Taylor-Hood finite elements
DOI	10.1515/jnma-2020-0017
PUBLICATION	Journal of Numerical Mathematics 2021, volume 29, issue 3, De Gruyter