317 citations · 796 across the 31 of their papers we have counts for
3 papers · 1 filter
A positivity-preserving and conservative high-order flux reconstruction method for the polyatomic Boltzmann--BGK equation
Tarik Dzanic, Freddie D. Witherden, Luigi Martinelli
In this work, we present a positivity-preserving high-order flux reconstruction method for the polyatomic Boltzmann--BGK equation augmented with a discrete velocity model that ensu…
Nonlinear p-multigrid preconditioner for implicit time integration of compressible Navier--Stokes equations
Lai Wang, Will Trojak, Freddie Witherden +1
Within the framework of -adaptive flux reconstruction, we aim to construct efficient polynomial multigrid (MG) preconditioners for implicit time integration of the Navier--…
Positivity-Preserving Entropy-Based Adaptive Filtering for Discontinuous Spectral Element Methods
Tarik Dzanic, Freddie D. Witherden
In this work, we present a positivity-preserving entropy-based adaptive filtering method for shock capturing in discontinuous spectral element methods. By adapting the filter stren…