High-Order Isogeometric Methods for Compressible Flows. II. Compressible Euler Equations
Abstract
This work extends the high-resolution isogeometric analysis approach established for scalar transport equations to the equations of gas dynamics. The group finite element formulation is adopted to obtain an efficient assembly procedure for the standard Galerkin approximation, which is stabilized by adding artificial viscosities proportional to the spectral radius of the Roe-averaged flux-Jacobian matrix. Excess stabilization is removed in regions with smooth flow profiles with the aid of algebraic flux correction KBNII. The underlying principles are reviewed and it is shown that linearized FCT-type flux limiting Kuzmin2009 originally derived for nodal low-order finite elements ensures positivity-preservation for high-order B-Spline discretizations.
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.