A matrix-free hyperviscosity formulation for high-order ALE hydrodynamics

•Hyperviscosity for ALE hydrodynamics with arbitrary order on unstructured meshes.•Robust shock capturing on moving high-order meshes with high-order convergence.•A method for computing hypervisocisty operator in an efficient, matrix-free manner.•Reduced numerical dissipation and enhanced resolution...

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Veröffentlicht in:	Computers & fluids 2020-06, Vol.205 (no. 205), p.104577, Article 104577
Hauptverfasser:	Bello-Maldonado, Pedro D., Kolev, Tzanio V., Rieben, Robert N., Tomov, Vladimir Z.
Format:	Artikel
Sprache:	eng
Schlagworte:	Compressibility Computational fluid dynamics Computer simulation Finite difference method Finite element method Finite elements Fluid flow Fluid mechanics Flux density High-order Hydrodynamics Hyperviscosity Inertial confinement fusion Lagrangian hydrodynamics Mathematical analysis MATHEMATICS AND COMPUTING Matrix-free methods Scalars Shock capturing Simulation Viscosity
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